19 center: (8, 2), point on circle: (14, -1)

Answers

Answer 1

The radius of this circle with center (8, 2) is equal to 6.71 units.

How to determine the distance between the coordinates for each points?

In Mathematics and Geometry, the distance between two (2) points that are on a coordinate plane can be calculated by using the following mathematical equation:

Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Where:

x and y represent the data points (coordinates) on a cartesian coordinate.

By substituting the given points into the distance formula, the radius of this circle can be calculated as follows;

Distance = √[(14 - 8)² + (-1 - 2)²]

Distance = √[(6)² + (-3)²]

Distance = √[36 + 9]

Distance = √45

Distance = 6.71 units.

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Complete Question:

What is the radius of the circle with Center: (8, 2), Point on Circle: (14,-1)? 2 decimal places


Related Questions

Use spherical coordinates to evaluate the triple integral ∫∫∫Ex2+y2+z2dV
, where E is the ball: x2+y2+z2≤81
.

Answers

[ rate 5stars~ and give thanks for more po! welcome! ]

Step-by-step explanation:

We have the triple integral:

∫∫∫E x^2 + y^2 + z^2 dV

where E is the ball x^2 + y^2 + z^2 ≤ 81.

In spherical coordinates, the volume element is given by:

dV = ρ^2 sin φ dρ dθ dφ

where ρ is the radial distance, φ is the polar angle (measured from the positive z-axis), and θ is the azimuthal angle (measured from the positive x-axis).

Substituting into the integral, we get:

∫φ=0 to φ=π ∫θ=0 to θ=2π ∫ρ=0 to ρ=9 ρ^2 sin φ (ρ^2) dρ dθ dφ

= ∫φ=0 to φ=π ∫θ=0 to θ=2π ∫ρ=0 to ρ=9 ρ^4 sin φ dρ dθ dφ

= ∫φ=0 to φ=π ∫θ=0 to θ=2π (1/5)(9^5) sin φ dθ dφ

= (2π/5)(9^5)(-cos φ)|φ=0 to φ=π

= (2π/5)(9^5)(-(-1 - 1))

= (4π/5)(9^5)

≈ 114413.73

Therefore, the value of the triple integral is approximately 114413.73.

Which parent functions have a domain of all real values of x? Select all that apply.
A. Absolute value
B. Linear
C. Reciprocal
D. Quadratic
E. Cube root
F. Cubic

Answers

Answer:

D. Quadratic

Step-by-step explanation:

The vertex of the parent function y = x2 lies on the origin. It also has a domain of all real numbers and a range of [0, ∞). Observe that this function increases when x is positive and decreases while x is negative

point(s) possible
Use the sample data and confidence level given below to complete parts (a) through (d).
A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1093 and x = 538 who
said "yes." Use a 90% confidence level.
Click the icon to view a table of z scores.
b) Identify the value of the margin of error E.
(Round to three decimal places as needed.)
c) Construct the confidence interval.

(Round to three decimal places as needed.)
d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
OA. One has 90% confidence that the interval from the lower bound to the upper bound actually does contain the
true value of the population proportion.
OB. 90% of sample proportions will fall between the lower bound and the upper bound.
C. One has 90% confidence that the sample proportion is equal to the population proportion.
D. There is a 90% chance that the true value of the population proportion will fall between the lower bound and the
upper bound.

Answers

a) Since n = 1093, x = 538, and we are using a 90% confidence level, we can find the standard error of the proportion using the following formula:

standard error = sqrt((p-hat * (1 - p-hat)) / n)

where p-hat is the sample proportion.

Substituting the given values:

p-hat = x / n = 538 / 1093 = 0.4925

standard error = sqrt((0.4925 * (1 - 0.4925)) / 1093)

standard error ≈ 0.015

b) To find the margin of error, we can use the formula:

margin of error = z* * standard error

where z* is the z-score corresponding to the desired confidence level.

Since we are using a 90% confidence level, the z-score is 1.645 (see the table of z-scores).

Substituting the values:

margin of error = 1.645 * 0.015

margin of error ≈ 0.025

Therefore, the margin of error is approximately 0.025.

c) The confidence interval can be constructed using the formula:

confidence interval = p-hat ± margin of error

Substituting the given values:

confidence interval = 0.4925 ± 0.025

confidence interval = (0.4675, 0.5175)

Therefore, the 90% confidence interval for the proportion of people who feel vulnerable to identity theft is (0.4675, 0.5175).

d) The correct statement that interprets the confidence interval is:

OA. One has 90% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.

This statement means that if we repeated the sampling process many times and constructed a 90% confidence interval each time, approximately 90% of the intervals would contain the true proportion of people who feel vulnerable to identity theft.

based on the value of r^2, which modeling equation is best fit for the data set? a. y=16.5839•1.0185^x
b. y=0.985515x-2.81333
c. y=-0.0000758936x^3+0.0143444x^2+0.207549x+7.70667
d. y=0.00182197x^2+0.785098x+1.195

Answers

Okay, let's evaluate each modeling equation candidate based on the r^2 value:

a. y=16.5839•1.0185^x

No r^2 value given, so cannot determine if this is the best fit.

b. y=0.985515x-2.81333

No r^2 value given for this linear model, so cannot determine if it is the best fit.

c. y=-0.0000758936x^3+0.0143444x^2+0.207549x+7.70667

This is a 3rd order polynomial model, but no r^2 is given, so cannot determine if it is the best fit.

d. y=0.00182197x^2+0.785098x+1.195

If this model has the highest r^2 value, it would be the best fit.

Based on the information provided, the only option that could potentially be the best fit is choice d, the quadratic model y=0.00182197x^2+0.785098x+1.195, if it has the highest r^2 value. But without the actual r^2 values for each model, a definitive determination cannot be made.

Does this help explain the approach? Let me know if you have any other questions!

When the student gets home, she gives 1/2 of her remaining fudge to her sister.
How many ounces of fudge does she give her sister?

Answers

The amount of fudge the student gives to her sister, which is (1/2) of her remaining fudge, calculated using fractions is 16 ounces

What is a fraction?

A fraction is a representation of a part of a whole, by setting the quantity representing the part as the numerator and the quantity representing the whole as the denominator with both quantities separated by the fraction bar.

Part of the question obtained from a similar question posted online can be presented as follows;

The amount of fudge the student has = 3 pounds

The amount of fudge the student eats = 1 pound of the fudge

Required; The amount of fudge the student has left

The amount of fudge the student has left = 3 - 1 = 2 pounds

The fraction of the remaining fudge the student gives to her sister = (1/2)

Therefore;

The amount of fudge the student gives her sister = (1/2) × 2 pounds = 1 pound

1 pound = 16 ounces

The amount of fudge she gives her sister in ounces = 16 ounces

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A recipe uses teaspoon of cinnamon for every 4 cups of granola mix.
How many teaspoons are needed for 12 cups of granola mix?

Answers

Okay, here are the steps to solve this:

* The recipe calls for 1 teaspoon of cinnamon for every 4 cups of granola mix.

* We are making 12 cups of granola.

* So to make 12 cups, we need 12 / 4 = 3 times as much cinnamon.

* Since each 4 cups uses 1 teaspoon, 12 cups will need 3 teaspoons.

Therefore, for 12 cups of granola mix, the recipe will call for 3 teaspoons of cinnamon.

You would need 3 teaspoons of cinnamon for 12 cups of granola mix.

Which equation models the relationship between c cups of flour and m muffins baked?

Answers

Answer:

constant of proportionality: A 4equation: D m = 4c

Step-by-step explanation:

Given a graph of muffins versus cups of flour, you want to know the constant of proportionality and the equation relating muffins (m) and cups (c).

Slope

The slope of the line on the graph is easily found by looking at the "muffins" (y) value for "cups" (x) equal to 1. That point is (c, m) = (1, 4).

The line goes through the origin (0, 0), so the slope is the ratio of y to x.

  m = y/x = 4/1 = 4

This is the constant of proportionality.

The constant of proportionality is 4, choice A.

Equation

The equation of a proportional relationship is ...

  y = kx . . . . . . where k is the constant of proportionality

Here, the independent variable (horizontal axis) is "cups", represented by 'c'. The dependent variable is "muffins", represented by 'm'. Using the above constant of proportionality, the equation is ...

  m = 4c . . . . . choice D

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Two forces of 637 newtons and 238 newtons act a point.The resultant force is 714 newtons. find the angle between the forces

Answers

We can use the cosine law to find the angle between the two forces. Let's denote the angle between the 637 N force and the resultant force as θ. Then we have:

714^2 = 637^2 + 238^2 - 2 * 637 * 238 * cos(θ)

Rearranging and solving for cos(θ), we get:

cos(θ) = (637^2 + 238^2 - 714^2) / (2 * 637 * 238)

cos(θ) = -0.0130

Taking the inverse cosine, we get:

θ = 180° - acos(-0.0130)

θ = 175.8° (rounded to one decimal place)

Therefore, the angle between the two forces is approximately 175.8 degrees.

y = |x - 5| + |x + 5| if -5 < x < 5

Answers

Step-by-step explanation:

This function has two pieces, each of which is the absolute value of a linear expression. We need to consider the function separately for different ranges of x.

When -5 < x < 0, then x + 5 is negative and x - 5 is also negative. Therefore, we have:

y = -(x - 5) - (x + 5) = -2x

When 0 ≤ x < 5, then x + 5 is positive and x - 5 is negative. Therefore, we have:

y = (x - 5) + (x + 5) = 2x

So the function y = |x - 5| + |x + 5| can be written as:

y =

-2x if -5 < x < 0

2x if 0 ≤ x < 5

Notice that the function is not defined for x ≤ -5 or x ≥ 5.

question in screenshot

Answers

Answer:

hope this might help you!!

If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed vo along the same line from the opposite direction toward the source, then the frequency of the sound heard by the observer is
fo =

c + vo
c − vs

fs
where c is the speed of sound, about 332 m/s. (This is the Doppler effect.) Suppose that, at a particular moment, you are in a train traveling at 32 m/s and accelerating at 1.1 m/s2. A train is approaching you from the opposite direction on the other track at 40 m/s, accelerating at 1.5 m/s2, and sounds its whistle, which has a frequency of 460 Hz. At that instant, what is the perceived frequency that you hear? (Round your answer to one decimal place.)

Answers

Doppler Effect happens when there is shift in frequency during a realtive motion between a source and the observer of that source.

It can be calculated as:

[tex]f_o=f_s\huge \text(\dfrac{c+v_o}{c+v_s}\huge \text )[/tex]

where:

c is the speed of light (c = 332m/s)

all the subscripted s is related to the Source (frequency, velocity);

all the subscripted o is related to the Observer (frequency, velocity);

As the source is moving towards the observer and the observer is moving towards the source, the velocities of each are opposite related to direction.

So, the frequency perceived by the observer:

[tex]f_o=460\huge \text(\dfrac{332+32}{332-40}\huge \text)[/tex]

[tex]f_o=460\huge \text(\dfrac{364}{292}\huge \text)[/tex]

[tex]f_o=460(1.247)[/tex]

[tex]f_o= 573.6 \ \text{Hz}[/tex]

At this condition, the observer hears the train's horn in a perceived frequency of 573.6 Hz

Answer:

The perceived frequency of sound is the amount of sound wave that pass a point in a given amount of time

The perceived frequency you hear is

370.9 Hertz

The function is given as:

[tex]f_{o}=\frac{c+V_{o} }{c-V_{o} }[/tex] x  [tex]f_{s}[/tex]

From the question

[tex]c=332[/tex] --- speed of the sound

[tex]V_{o} =32[/tex] ---current speed of the train

[tex]V_{s} = 40[/tex] --- speed of the opposite train

[tex]f_{s} =460[/tex] --- frequency of the sound wave

This gives:

[tex]f_{o}= \frac{332-32}{332+40}[/tex]  ×[tex]460[/tex]

[tex]f_{o}= \frac{300}{372} x460[/tex]

Rewrite as:

[tex]f_{o}= \frac{300x460}{372}[/tex]

[tex]f_{o}= 370.9[/tex]

I need help please I can’t figure this out

Answers

Answer: Area=3.125 square feet

Step-by-step explanation:

2.5x2.5=6.25

6.25/2= 3.125

Answer:

A = 50 ft²

Step-by-step explanation:

the area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

given that 1 inch equals 4 feet , then

b = 2.5 in = 2.5 × 4 feet = 10 feet

h = 2.5 in = 2.5 × 4 feet = 10 feet

then

A = [tex]\frac{1}{2}[/tex] × 10 × 10 = 5 × 10 = 50 ft²

Change 14,277 s to h, min, and s.

Answers

When 14,277s is converted to hr, min and hr, it gives 3 hours, 57 minutes, 7 seconds.

What is Conversion?

Conversion is the process of changing the value of one form to another. It is also the conversion between different units of measurement for the same quantity.

How to determine this

When 60 seconds makes 1 minute

60 minutes makes 1 hour

14,277 seconds to minutes

When 60 seconds = 1 minute

14,277 seconds = x

x = 14,277/60 minutes

x = 237 minutes 7 seconds

By converting 237 minutes to hour

When 60 minutes = 1 hour

237 minutes = x

x = 237/60 hours

x = 3 hours 57 minutes.

Therefore, the conversion is 3 hours 57 minutes 7 seconds

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The volume of blood in a person's body is proportional to body weight. A person who weighs 200 pounds has approximately 6 quarts of blood. Estimate the number of quarts of blood

in a person who weighs 90 pounds.

Complete the proportion, where the ratios have volumes of blood in the numerators and body weights in the denominators.

X

(Doshot simplify.)

X

More

Answers

The estimated number of quarts of blood the individual with the given weight will have would be = 2.7 quarts.

How to calculate the number of quarts of blood the individual has?

The body weight of the first individual = 200 pounds

The volume of blood = 6 quarts.

Therefore a person of 90 pounds = X quarts.

That is;

200 pounds = 6 quarts

90 pounds = X quarts

make X quarts the subject of formula;

X = 90×6/200

= 540/200

= 2.7 quarts

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Question 9 of 10
A rational expression has been simplified below.
(x+4)(x-2)x+4
9(x-2)
For what values of x are the two expressions equal?
O A. All real numbers except -4 and 2
OB. All real numbers except 2
C. All real numbers
D. All real numbers except -4

Answers

The values of x are the two expressions equal to All real numbers except 2.

We are given that rational expression has been simplified below.

(x+4)(x-2)x+4

9(x-2)

WE know that X=4/9 is simplified, but we can simplify the other side by canceling out the (x-2) in the numerator and denominator.

The expression should be;

(x + 4)(x - 2)/9(x - 2)= (x + 4)/9.

After simplification by (x - 2) , the remainder will be;

(x + 4)/9.

When x = -4,  both sides equal to zero.

When x = 0 , both sides equal to 4/9

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What is the greatest commen factor of 72 and 96

Answers

the greatest common factor of 72 and 96 is 24

The circle below has center O, and its radius is 5 m. Given that m LAOB = 30°, find the area of the shaded region and the length of the arc ADB. Give exact answers in terms of it, and be sure to include the correct units in your answer.

Answers

Measure of ∠ADB  is 240 degrees,  the area of the shaded region is 42.67π m² and arc length ADB  is 10.67π m

Given that the circle has a center O.

The radius of the circle is 8 m.

The measure of ∠AOB is 120°

We need to determine the area of the shaded region and the length of the arc ADB.

The measure of ∠ADB is given by

∠ADB = 360 - ∠AOB

= 360 - 120

=240 degrees

The area of the shaded region can be determined using the formula,

A = (θ/360) πr²

A = (θ/360) ×3.14× 8²

A = 42.67 m²

Thus, the area of the shaded region is 42.67π m²

The length of arc ADB can be determined using the formula,

Arc length =  (θ/360) 2πr

=10.67π m

Hence,  measure of ∠ADB  is 240 degrees,  the area of the shaded region is 42.67π m² and  length of arc ADB  is 10.67π m

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In the given diagram find the value of x
a) 1
b) 2
c) 3
d) 4

Answers

Given

ABCΔ  is a triangle.

D is a point on [BC]

|BD|=4

|AD|=|CD|

m(CBAˆ)=α=30∘

m(ACBˆ)=β=20∘

To Find

What is |AC|=x?

Solution

Geometric approaches gave me nothing. Letting |AD|=|CD|=a, |AB|=b

and applying law of cosines to all three triangles yields;

x=2acos20∘16=a2+b2+2abcos70∘(a+4)2=b2+x2+2bxcos50∘

respectively, from ACDΔ, ABDΔ and ABCΔ. Directly isolating x from these equations gives an expression involves trigonometric function(s), and i cannot find a way to annihilate trigonometric functions in these equations to reach the answer which is x=4

The complete question is -

In the given diagram find the value of x

a) 1

b) 2

c) 3

d) 4

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What is the surface area of this cylinder?
Use 3.14 and round your answer to the
nearest hundredth.
2 ft
5 ft
square feet

Answers

The surface area of this cylinder is 942 millimeter square

How to determine the surface area

The formula for the surface area of a cylinder is expressed as;

SA = 2πr h + 2πr²

Given that the parameters are identified as;

SA is the surface area of the cylinder.r is the radius of the cylinder..h is the height of the cylinder

From the information given, we have that;

Surface area = 2 × 3.14 × 10 × 5  + 2× 3.14 × 10²

Find the square values

Surface area = 2 × 3.14 × 10 × 5  + 2× 3.14 × 100

Multiply the values

Surface area = 314 + 628

Now, add the values

Surface area = 942 mm²

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Rajindri, a physician assistant who works in an emergency room, earns $163 for every two hours that she works.

Which equation represents the relationship between d, the number of dollars Rajindri earns, and t, the amount of time Rajindri works, in hours?

A. d= 163 + t

B. d= 163/2 × t/2

C. d = 163t

D. d = 81.50t

Answers

Answer:

The correct equation is C. d = 163t.

This equation shows a direct proportionality between the amount of time worked (t) and the amount of money earned (d). For each hour worked, Rajindri earns $163, so the total amount earned (d) is equal to the hourly rate of $163 multiplied by the number of hours worked (t).

Step-by-step explanation:

For each SSA case below, i) solve by the law of cosines, (ii) solve by the law of sines; use degrees for angles, and round each answer to its nearest 100th:

Answers

The values of the angles will be 6.67°, 156.78° Be 29.93° and the sides will be 10.01, 34 and 43.

How to explain the angle

SSA stands for side side angle postulate. In this postulate of congruence, we say that if two sides and an angle not included between them are respectively equal to two sides and an angle of the other triangle then the two triangles are equal.

By sine rule,

Y = sin156.78 × 44 / 34

= 29

sin Y = 0.499

Y = 29.93°

By the angle sum property. The last angle will be:

180 - 156.78 - 29.93

= 6.67°

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what is the product of -6

Answers

Answer:

The product of -6 is not a well-formed question. A product refers to the result of multiplying two or more numbers together, but there is no other number specified in the question. If you provide more information or context, I would be happy to assist you.

Step-by-step explanation:

Tell whether the given side lengths can represent the sides of a right triangle
10, 12, 20
Determine if the segment lengths form an acute, right, or obtuse triangle,
10, 11, 14
26.


Need help with all of these please need this asap. Please show work

Answers

23. By the diagram, the triangle is a [tex]45^\circ - 45^\circ-90^\circ[/tex] triangle. Therefore, the triangle is isosceles, so [tex]x=6.[/tex] And by the Pythagorean theorem, [tex]y^2=x^2+6^2=6^2+6^2=72,[/tex] and taking the square root yields [tex]y = 6\sqrt{2}.[/tex]

24. Notice that by the diagram, the triangle is a [tex]30^\circ-60^\circ-90^\circ[/tex] triangle. It is well known that in these special types of triangles, if [tex]a[/tex] is the side length opposite the [tex]30^\circ[/tex] angle, then the side length opposite the [tex]90^\circ[/tex] angle is [tex]2a,[/tex]  and finally the side length opposite the [tex]60^\circ[/tex]  is [tex]a\sqrt{3}.[/tex] This is shown in the image I've attached below, and can also be easily proven by the fact that two of these triangles combine to form an equilateral triangle.

So using this fact, we know that [tex]x = \frac{8}{2} = 4,[/tex] and [tex]y = x\sqrt{3} = 4\sqrt{3}.[/tex]

25. Tell whether the given side lengths can represent the sides of a right triangle: 10, 12, 20

For this question, we simply use the converse of the Pythagorean theorem. One part of its statement says that if a triangle has sides of length [tex]a, b, c[/tex] such that [tex]a^2 + b^2 = c^2[/tex], and [tex]c[/tex] is the longest side, then the angle opposite the side of length [tex]c[/tex] is a right angle.

Thus, if the triple [tex](a, b, c)[/tex] does not satisfy the equation, the triangle it forms is not a right triangle. In our case, the corresponding values for [tex](a, b, c)[/tex] are [tex](10, 12, 20),[/tex] because [tex]20[/tex] is the largest number in this triple. But [tex]10^2+12^2=244\neq 400 = 20^2,[/tex] so the triangle with side lengths [tex]10, 12, 20[/tex] is not a right triangle.

26. Another statement of the converse of the Pythagorean theorem is that if a triangle has side lengths [tex]a, b, c[/tex] such that [tex]c^2 > a^2+b^2[/tex] , with [tex]c[/tex] being the longest side, then the triangle is an obtuse triangle. So the corresponding values for [tex]a, b, c[/tex] are [tex]10, 11, 14,[/tex] and because [tex]14^2 = 196 < 221 = 10^2+11^2,[/tex] the triangle is an obtuse triangle.


Supplementary angles

Answers

Answer: ∠EGF and/or ∠CGB

Step-by-step explanation:

Starting Angle: ∠CGE

Possible Supplements: ∠EGF and ∠CGB

if you rotate cars tires at 10,000 miles, if a car tire has 25,200 rotations per day, how many weeks will it be until you rotate the tires

Answers

It will take 4. 09 weeks for the tires to be rotated at the current rate.

How to find the time till rotation ?

When rotating a car's tires every 10,000 miles, each tire must complete this distance before being moved.

25, 200 rotations / day x 7 days / week = 176, 400 rotations per week

To solve this predicament, dividing 10,000 miles by the number of rotations/mile (which equates to the tire's circumference) is necessary. The formula for calculating a tire's circumference can aid in obtaining this number along with the weeks required to perform the rotation process:

C = 2πr

Rotation per mile is:

1 mile / 87.96 inches / rotation = 72.26 rotations / mile

Number of weeks:

10, 000 miles x 72. 26 rotations / mile = 722, 600 rotations

722, 600 rotations / 176, 400 rotations/week = 4.09 weeks

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Which of the following is the expanded form of a number? Select all correct answers.
(A) 7·1000+8·100+3· 1/100
(B) 4·100+9·100+3· 1/10 +4· 1/10
(C) 71·10+4·1+6· 1/100 +5· 1/1000
(D) 5·1000+5·100+5·1+5·1/100
(E) 3·1000+8·1000+9·1/1000
(F) 9·1000+3·101+5· 1/10

Answers

The expanded form of a number is a way of writing a number as the sum of its individual digit values, with each digit multiplied by its place value.

(A) 7·1000+8·100+3· 1/100 is the expanded form of a number.
(B) 4·100+9·100+3· 1/10 +4· 1/10 is the expanded form of a number.
(C) 71·10+4·1+6· 1/100 +5· 1/1000 is the expanded form of a number.
(D) 5·1000+5·100+5·1+5·1/100 is the expanded form of a number.
(E) 3·1000+8·1000+9·1/1000 is the expanded form of a number.
(F) 9·1000+3·101+5· 1/10 is not the expanded form of a number as the second term 3·101 is not a valid place value.

Therefore, options A, B, C, D, and E are the correct answers.

Football is 360ft.long 160ft.wide use 8lb. Fertilizer per 1000sqft it come in 50lb bag. How many bags will I need

Answers

We number of bags is 10 bags of fertilizer to complete the job.

Describe Algebra?

Algebra is a branch of mathematics that deals with the study of mathematical symbols and their manipulation. It involves the use of letters, symbols, and equations to represent and solve mathematical problems.

In algebra, we use letters and symbols to represent unknown quantities and then use mathematical operations such as addition, subtraction, multiplication, division, and exponentiation to manipulate those quantities and solve equations. We can use algebra to model and solve real-world problems in various fields such as science, engineering, economics, and finance.

The total area of the football field is:

360 feet × 160 feet = 57,600 square feet

To find out how many bags of fertilizer are needed, we need to calculate how many 1000-square-foot areas there are on the field:

57,600 square feet ÷ 1000 square feet/area = 57.6 areas

So there are 57.6 areas on the football field.

We need 8 pounds of fertilizer per 1000 square feet, so to find out how many pounds we need for the whole field, we can multiply by the number of areas:

8 pounds/1000 square feet × 57.6 areas = 460.8 pounds

Therefore, we need 460.8 pounds of fertilizer to cover the football field.

Since the fertilizer comes in 50-pound bags, we can divide the total amount of fertilizer needed by 50 to find out how many bags we need:

460.8 pounds ÷ 50 pounds/bag ≈ 9.22 bags

We can't buy a fraction of a bag, so we need to round up to the nearest whole bag. Therefore, we need 10 bags of fertilizer to complete the job.

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The complete question is:

You are applying fertilizer to a football field. The field is 360 feet long and 160 feet wide. You use 8 pounds of fertilizer per 1000 square feet. The fertilizer comes in 50- pound bags. How many bags of fertilizer will you need to complete this job?

traveled 1/5 miles in 3/2 hour. how many in 1 hour. show model fraction representation

Answers

a)Traveled 0.3 miles in 1 hour.

b) The fraction representation is 3/10 miles per hour.

a) To find out how many miles the person traveled in 1 hour, we need to divide the distance traveled by the time taken.

Distance traveled = 1/5 miles

Time taken = 3/2 hours

To make it easier to divide, we can convert the time taken to a fraction with a common denominator of 10:

3/2 = 15/10

Now we can divide the distance by the time:

1/5 ÷ 15/10 = 1/5 x 10/15 = 2/15

This tells us that the person traveled 2/15 miles in one-tenth of an hour (i.e., 6 minutes).

To find out how many miles per hour they traveled, we can convert the fraction to a rate by multiplying it by the reciprocal of the time fraction (i.e., 10/3):

2/15 x 10/3 = 2/9

Therefore, the person traveled 2/9 miles per hour.

b) To write this as a model fraction representation, we can express it as a single fraction:

2/9 = 3/10 (rounded to the nearest tenth)

So the person traveled at a rate of 3/10 miles per hour.

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Find the sales tax. Then find the total cost of the item.
$50.00
Sales Tax
Rate of Sales Tax Sales Tax
7%
?

Answers

As a result, the item's final price is $53.50 and the sales tax is $3.50.

What is sales tax?

The government levies a consumption tax known as sales tax on the purchase of goods and services. The seller often calculates it as a percentage of the purchase price and collects it. After then, the vendor transfers it to the government .. The funding of government services and programmers comes from sales tax

We can multiply the item's price by the applicable sales tax rate to determine the sales tax:

Price of Item  x   Sales Tax Rate equals Sales Tax

Sales Tax: $50.00 x 7% = $3.50

We can multiply the item's price by the applicable sales tax to determine the entire cost of the purchase, including tax:

Price of Item + Sales Tax = Total Cost

$50.00 plus $3.50 equals $53.50 as a total

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Running for public office is not a decision to be taken lightly, and requires considerable investments of both time and money. A local businesswoman is considering running for mayor, but will only do so if she has the support of more than 60% of voters in the city. She commissions a polling company, who take a random sample of eligible voters and find 64% would support this businesswoman.

(a) Which hypotheses should the businesswoman test, to determine if she has sufficient community support?

H0:
Ha:

(b) The polling company finds the p-value = 0.076. For = 0.05, what does this suggest the businesswoman should do?
____ for office. There is ___ evidence she ____ enough supporters.

Answers

The proportion of eligible voters who would support the businesswoman is less than or equal to 0.6, and the proportion of eligible voters who would support the businesswoman is greater than 0.6.

What is a hypothesis?

In statistics, a hypothesis is a statement or assumption about a population parameter that is being tested for its truthfulness based on sample data. It is a tentative explanation for an observation or phenomenon and is used to make predictions about the outcome of an experiment or study. Hypotheses can be either null hypotheses, which state that there is no significant difference or relationship between variables, or alternative hypotheses, which propose that there is a significant difference or relationship.

(a) The hypotheses that the businesswoman should test are:

H0: The proportion of eligible voters who would support the businesswoman is less than or equal to 0.6.

Ha: The proportion of eligible voters who would support the businesswoman is greater than 0.6.

(b) The p-value is greater than the significance level of 0.05, which suggests that the results are not statistically significant. Therefore, the businesswoman should not run for office. There is not enough evidence she has enough supporters.

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