PLEASE HELP ME!!!!!!!!!!!!!!!

PLEASE HELP ME!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

hypotenuse(h)^2 = 3^2 + 7^2

h^2 = 9 + 49

h = √58

h = 7.6


Related Questions

If ab = 10 ft, ac = 14 ft, and bc = 20 ft, what is rs? 10 ft 14 ft 20 ft 24 ft

Answers

The side |rs| is congruent to side |ac| which is 14 ft.

What are congruent triangles?

Congruent triangles are two similar triangles that have corresponding sides and angles and they are of equal measure.

The figures from the textbook illustrate that following rotation, the two triangles are congruent.

This signifies that the angles and sides of the first triangle are equal to the angles and sides of the other triangle.

Therefore:

ab = tr = 10 ftac = rs = 14 ftbd = ts = 20 ft

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Later on in this module, you will learn how to model events by writing trigonometric functions. for now, do some research on events that are cyclical or periodic. write a discussion post about one of those events. be sure to describe the event and the period.

Answers

The events that are cyclical are:

The change of seasons each yearEarth Rotation.Moon Phases.Tides.

The  events that are  periodic are:

Pendulum  OscillationSimple harmonic motionstuning fork,, etc.

What are Cyclical events?

Cyclical events are known to be event that occurs in a specific order e.g. Changes in the economy.

The Events that take place only after a regular interval of time are known to be periodic event.

Therefore, the events that are cyclical are:

The change of seasons each yearEarth Rotation.Moon Phases.Tides.

The  events that are  periodic are:

Pendulum  OscillationSimple harmonic motionstuning fork,, etc.

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As the sample size increases, the margin of error _____.

Answers

The margin of error is inversely proportional to the sample size. As the sample size increases, the margin of error decreases.

What is the margin of error?

The probability or the chances of error while choosing or calculating a sample in a survey is called the margin of error.

The margin of error is given as

[tex]\rm ME = z\times \sqrt{\dfrac{p(1-p)}{n}}[/tex]

We know that margin of error is inversely proportional to the sample size.

As the sample size increases, the margin of error decreases.

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Sofia's audio player has 15,000 songs. the play time for the songs is skewed to the right, with a mean of 255 seconds and a standard deviation of 30 seconds. part a: can you accurately calculate the probability that the mean play time is more than 260 seconds for an srs of 15 songs? explain. (4 points) part b: if you take a random sample of 40 songs instead of 15, explain how the central limit theorem allows you to find the probability that the mean play time is more than 260 seconds. calculate this probability and show your work. (6 points)

Answers

Using the normal distribution and the central limit theorem, it is found that:

a) Since the distribution is skewed and the sample size is less than 30, the probability cannot be calculated.

b) There is a 0.1469 = 14.69% probability that the mean play time is more than 260 seconds.

Normal Probability Distribution

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex], as long as the underlying distribution is normal and the sample size is at least 30.

The mean and the standard deviation are given by, respectively:

[tex]\mu = 255, \sigma = 30[/tex]

In item a, according to the Central Limit Theorem, since the distribution is skewed and the sample size is less than 30, the probability cannot be calculated.

For item b, we have that n = 40 > 15, hence the standard error is given by:

[tex]s = \frac{30}{\sqrt{40}} = 4.74[/tex]

The probability is one subtracted by the p-value of Z when X = 260, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{260 - 255}{4.74}[/tex]

Z = 1.05

Z = 1.05 has a p-value of 0.8531.

1 - 0.8531 = 0.1469.

There is a 0.1469 = 14.69% probability that the mean play time is more than 260 seconds.

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geometry please help!

Answers

Answer:

x = 3

Step-by-step explanation:

Angle S and Angle T are consecutive interior angles. Therefore, we know that T + S = 180°.

First, we need to solve for T, and since angles S and T are consecutive interior angles, we know that T + S = 180°. If we reorganize the equation to include the things we know (S = 105°), then we get 180° - 105° = 75°. So T is 75°.

Now, we use T = 75° and the information given to us in the picture to set up an equation. 75 = 24x + 3. Now, we can find x by isolating it. Do this by:

1) Subtracting 3 from both sides to give you 72 = 24x. We do this to get rid of the 3 from the "x side", but we must also do it to the other to keep the equation true. This moves the 3 from the "x side" to the other since we're trying to isolate x.

2) Divide 24 by both sides to get 3 = x. We use the same logic as we did for 3, except this time we divide since that's the opposite of multiplying.

In conclusion, x = 3.

If 0.15% of budget is spent on office supplies, what decimal should you multiply budget

Answers

Answer:

0.015

Step-by-step explanation:

0.15% = 0.0015

{transfer}

GRADE 11 MATH

PLEASE HELP!

Nelson received $10,000 on his 17th birthday. This is the accumulated amount of an

investment his parents made on the day he was born. The investment earned 9.5%/a,

compounded semi-annually.

a) Determine the amount that Danny’s parents invested 17 years ago. [3 marks]

b) How much interest did the investment earn? [1 mark]

Answers

The amount that was invested 17 years ago is $2064.25.

The interest earned is  $7935.75.

What is the amount invested 17 years ago?

The formula that would used to determine the amount that was invested 17 years ago is:

P = FV / (1 + r)^nm

Where:

FV = Future value = 10,000P = Present value R = interest rate = 9.5 / 2 = 4.75%m = number of compounding = 2 N = number of years = 17

10,000 / (1.0475)^(17 x 2) = $2064.25

Interest earned = 10,000 - 2064.25 = $7935.75

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The NUK Energy Company is designing a new logo, as shown in the accompanying
diagram, with mNK-130 and mNK-m.NU.
N
K
What is the measure of ZKNU?
1) 80°
2) 65°
3) 50°
4) 100°
U

Answers

The measure of the angle KNU (∠KNU) of the cyclic quadrilateral is; Option 3: 50°

How to find the angle in a quadrilateral?

From the attached cyclic quadrilateral of NUK Energy Company's new logo, we can say that equal angles intercept equal arcs and as such, the measure of angle KNU will be;

∠KNU 1/2 * 100 = 50°

This is because If two inscribed angles of a circle intercept the same arc or arcs of equal measure, then the inscribed angles have equal measure.

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If ten rolls of tape cost $30, how much will 12 rolls cost?​

Answers

Answer:

Step-by-step explanation:

10 rolls = $30

12 rolls = ...

Because $3 for each roll of tape, so 3 x 10 = 30. All we have to do is multiply 3 by 12 to get how much for 12 rolls.

36.

A biologist hypothesizes that the mean life expectancy of a mosquito is 14 days. Researchers believe the true mean is less than 14 days and they plan a hypothesis test at the 5% significance level on a random sample of 60 of these mosquitos. If the alternative hypothesis is correct, for which of the following values of μ is the power of the test greatest?
μ = 9
μ = 7
μ = 10
μ = 14
μ = 18

Answers

Based on the alternative hypothesis, the value of μ that will have the greatest test power is μ = 7.

Which value of μ will have the greatest power of test?

The alternative hypothesis is that Hₐ : μ < 14.

For the alternative hypothesis to be right, μ will have to be less than 1.4.

μ will also give a greater test power the lower it is below 14. From the options therefore, μ with the greatest test power would be 7.

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Answer:

μ = 7

Step-by-step explanation:

Got this right on the segment exam. Good luck, my FLVS fellows!


A car used of a gallon of gas to drive of a mile. At this rate, how many miles
can the car travel using 1 gallon of gas?

Answers

Answer: 4/64
• 29
^ 3.5
Step-by-step explanation:
Since 1/4 * 4 = 1
We just have to multiply 1/64 times 4 to get the
answer
1/64 * 4 = 4/64

Keiko surveyed people with cell phones.
Age in years=a
Texts they send per day=t
He drew a best-fit line and determined its equation.

Student
Keiko
Trend Line
t -1.63a + 92.14

Evaluate how many texts a 15 year old would send each day according to Keiko's trend line equation.

Answers

Using the line of best fit, the amount of texts a 15-year old would send in a day is of 67.69.

What does the line of best fit gives?

It gives the expected number of texts a person of an age a would send in a day, according to the following function:

t = -1.63a + 92.14.

For a person that is 15 years old, we have that a = 15, hence the expected number is given by:

t = -1.63 x 15 + 92.14 = 67.69 texts.

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Martin wants to use coordinate geometry to prove that the opposite sides of
a rectangle are congruent. He places parallelogram ABCD in the coordinate
plane so that A is (0, 0), B is (a,0), C is (a, b), and D is (0, b).
What formula can he use to determine the distance from point D to point A?
A. 0-0)2+(b-0)² = √√b² = b
B. (a-a)2+(b-0)² = 6²
C. (0-0)² + (b-0)² = 6²
OD. √(-a)2+(b-0)²-√√b² = b

Answers

The correct answer is option A which is the distance between A and D will be  AD = [tex]\sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b[/tex].

What is coordinate geometry?

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

The formula utilised to find the distance between two points is;-

X = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

We have the coordinates of the point A = (0, 0) and D is  (0, b).By applying the formula to find the distance between A and D.

AD = [tex]\sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b[/tex].

Therefore the correct answer is option A which is the distance between A and D will be  AD = [tex]\sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b[/tex].

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#24. you and your friends go to the county fair the cost to get in is $8 and the tickets per game to my cost $0.25 each. Write an equation to create a table of reasonable values and identify the domain and range for the scenario.​

Answers

The equation of the scenario is y = 8 + 0.25x and the domain is x ≥ 0 and the range is y ≥ 8

How to determine the equation?

The given parameters are:

Entrance fee = $8Rate = $0.25 per person

Let the total cost be y, and the number of people be x.

The equation would be:

y = Entrance + Rate * x

This gives

y = 8 + 0.25x

Hence, the equation of the scenario is y = 8 + 0.25x

The table of values

Set x = 0 to 5, and calculate the function values

y = 8 + 0.25 * 0 = 8

y = 8 + 0.25 * 1 = 8.25

y = 8 + 0.25 * 2 = 8.50

y = 8 + 0.25 * 3 = 8.75

y = 8 + 0.25 * 4 = 9.00

y = 8 + 0.25 * 5 = 9.25

So, the table of values is:

x    y

0    8

1      8.25

2     8.50

3     8.75

4     9.00

5    9.25

The domain and the range

The domain is the set of people that can get in (i.e. at least 0), while the range is the total amount (i.e. at least the entrance fee)

Hence, the domain is x ≥ 0 and the range is y ≥ 8

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PLEASE HELP!!! 50 POINTS!!!

Answers

Answer:

Part A:

In order to find a coterminal angle, or angles of the given angle, simply add or subtract 360 degrees of the terminal angle as many times as possible.

Part B:Simply put, coterminal angles start at 0° and end at the same place, though in different directions and multiple times around (you're probably going to want to make that sound a little more formal). Since each time around is 360°, boom

Part C: 75° is in Quadrant II, right? If I go one more time around, 75 + 360 = 435°. I can also go "backward. Starting at 0 and going clockwise, I'm going 75 fewer degrees than all the way around, so 360-75 = 285° but since I'm going "backward" 75 - 360 = -285°. One more is on you.

Step-by-step explanation:

Can I get help with this pls

Answers

Answer:

2 [tex]\leq[/tex] x [tex]\leq[/tex] 7

Step-by-step explanation:

See attachment.

what is pi times squared

Answers

Answe

Step-by-step explanation:

cuanto es 3,072 en fraccion ?

The sum of the lengths of any two sides of a triangle is greater than the length of the third side. What can you conclude about AC in ABC?
BC + AC = 22; AB + BC = 12

Answers

Answer:

ab<6 units

Step-by-step explanation:

One of the basic property of any triangle is that the sum of the length of any two sides of a triangle is always greater than the length of the third side. Here we are given a triangle abc, in whicn bc=4ac= 8-abIf have to make some conclusion about ab.As per the property discussed above ab<ac+bcab<8-ab+42ab<12ab<6Hence the length of ab must be less than 6 units

help solve these algebraic fractions please, with explanation would be great ​

Answers

Step-by-step explanation:

i answered it , and tried to give explanation too...

hope its helpful ,

plss help, ill give brainiest

Answers

Answer:

A

Step-by-step explanation:

Cylinder volume= V = π r ^2 h

So you times Pie by the radius (diametre divided by two- 3.5) you then square this. After that, times it by the height (10)

So the volume is 384.85.

You then find 30% of this, so times 384.85 by 30%.

You then get an answer of 115.455, and this is equal to A.

I hope this helps, have a lovely day.

7x+8y=-18
-5+y=-14
system by substitution ^​

Answers

Answer:

y=5+14=19

Step-by-step explanation:

Y=5+14=19 this is the right answers

Two lines, A and B, are represented by the equations given below: Line A: y = x − 6 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why? (1 point) a (−5, −11), because the point satisfies both equations b (−5, −11), because the point does not lie on any axis c (−3, −5), because the point satisfies one of the equations d (−3, −5), because the point lies between the two axes

Answers

The solution to the system of linear equations is: (−5, −11).

What is the Solution to the System of Linear Equations?

The solution to a system is the x and y -coordinates that satisfies the two linear equations.

Given the linear equations:

Line A: y = x − 6

Line B: y = 3x + 4

Now, equating these two equations

x - 6 = 3x + 4

2x = -10

x = -5

y = -11

Hence, the solution is: (−5, −11), because the point satisfies both equations.

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Given that p(x) = 2(x - 12)2 + 5, what is the value p(3)

Answers

Answer:

p(3) = 25

Step-by-step explanation:

p(3) = 2(3 - 12)2+5

p(3) = 6 - 24 + 2 + 5

p(3) = 25

The graph of the function f (x) = StartFraction 3 Over x + 5 EndFraction is shown below.

On a coordinate plane, a hyperbola is shown. Both curves approach x = negative 5.

What is the vertical asymptote of the function?

Answers

Using it's concept, it is found that the vertical asymptote of the function [tex]f(x) = \frac{3}{x+5}[/tex] is of x = -5.

What are the vertical asymptotes of a function f(x)?

The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.

In this problem, the function is fraction given by:

[tex]f(x) = \frac{3}{x + 5}[/tex]

At the denominator, we have that:

x + 5 = 0 -> x = -5

Hence the vertical asymptote of the function [tex]f(x) = \frac{3}{x+5}[/tex] is of x = -5.

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Answer: A) x= -5

Took the test and got 100% :)

When written in factored form, 4w² -11w-3 is equivalent to

Answers

When written in factored form, 4w² -11w-3 is equivalent to (4w+1)(w−3).

What is the factored form of an expression?

When an expression is written as a result of the multiplication of some terms, then that multiplication form is called the factored form of that expression.

Example:   6 = 3 x 2 is a factored way of writing 6.

Given expression as

4w² -11w-3

4w²- 12 w− 1w − 3

(4w+1)(w−3)

Thus, the factored form of 4w² -11w-3 is (4w+1)(w−3).

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The probability that Janet will win the marathon is 44%. What is the probability that Janet will not win the marathon? Write the probability as a percent and include the percent symbol.

Answers

Answer:

56%

Step-by-step explanation:

If the percentage that she wont win is 44% she still has a 64 percent chance of winning

What critical value of t* should be used for a 95% confidence interval for the population mean based upon a random sample of 20 observations

Answers

Using a calculator, the critical value of the t-distribution that should be used for a 95% confidence interval with 20 observations is of t* = 2.0930.

How to find the critical value of the t-distribution?

A calculator is used, with two inputs:

The confidence level.The number of degrees of freedom, which is one less than the sample size.

In this problem, we have a 95% confidence interval, with 20 - 1 = 19 df, hence the critical value is of t* = 2.0930.

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Which line is perpendicular to the line: y − 4 = 25(x +1)?

Answers

Y-4=24(x+1) I hope this helps you

Table for a linear equation
Fill in the table using this function rule.
y = -10x + 1
x y
-5
-1
0
1

Answers

Answer:

x:     y :

-5  |  51

-1   |  11

0   |  1

1    |  11

Step-by-step explanation:

y = 10x + 1

(Table)

x:      y:

-5  |

-1   |

0   |

1    |

Lets begin plugging in our (x) into the function(x = -5)

y = -10(-5) + 1

y = 50 + 1     (if you multiply a negative by a negative it will be positive)

y = 51

(x = -1)

y = -10(-1) + 1

y = 10 + 1

y = 11

(x = 0)

y = -10(0) + 1

y = 0 + 1

y = 1

(x = 1)

y = -10(1) + 1

y = 10 + 1

y = 11

Plug into the table

(table)

x:     y :

-5  |  51

-1   |  11

0   |  1

1    |  11

If you have any questions feel free to ask:)

so i have 56 8 year old kids in my basement and i auction off 25 of them how many kids do i have left?

Answers

Answer:

none because i boiled them all

Step-by-step explanation:

Answer:

31 kids

Step-by-step explanation:

56-25=31

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Trade between Mexico and New Mexico established during the Spanish period was ______________.a.free for anyoneb.open only to the Frenchc.open to only Anglosd.open only to the Spanish Based on the periodic table, which of the following groups of elements should have very different chemical properties?OA. lithium (Li), sodium (Na), potassium (K)OB. beryllium (Be), magnesium (Mg), calcium (Ca)OC. helium (He), neon (Ne), argon (Ar)OD.potassium (K), aluminum (Al), neon (Ne) Add 4/13 with the multiplicative inverse of 5 1/5 Please help , giving brainliest . Sulphuric acid (H2SO4) is extremely corrosive to skin. Which branch of chemistry is this?1) Analytical Chemistry2) Bio Chemistry3) Environmental Chemistry4) Inorganic Chemistry Which statement describes a similarity between U.S. foreign policy in EastAsia and in Latin America during the Cold War?O A. The United States attempted to suppress conflict and promotehuman rights throughout the regions.B. The United States created military outposts armed with nuclearweapons to protect its economic interests.O C. The United States allied itself with nationalist groups, even if theywere communists.D. The United States devoted resources to opposing communistgroups and governments in multiple countries. pls answer I'll mark brainliest Solve for X.- 4x + 10 = 50 The anatomical term that indicates a structure close to the surface is. Which situation is most clearly an example of impulsiveness?A. After weeks of working up to it, Lee finally asks Scott to go to amovie with him.B. Kai shoots baskets all summer long so he's ready to try out for thebasketball team.C. Mahvash buys a basket full of figs at the farmer's market to makejam.D. Carlotta doesn't score any goals during the first game of theseason so she quits the team. What is the explicit formula for this sequence?-7, -4, -1, 2, 5, ... 10 points! Please help me! A frustum is formed when a plane parallel to a cones base cuts off the upper portion as shown.A cone is shown. The top of the cone is cut off to form a frustum of the bottom portion. The cone has a radius of 3.5 and a height of 8. The frustum has a height of 11 and a radius of 7.5.Which expression represents the volume, in cubic units, of the frustum?One-third(7.52)(11) One-third(3.52)(8)One-third(7.52)(11) + One-third(3.52)(8)One-third(7.52)(19) One-third(3.52)(8)One-third(7.52)(19) + One-third(3.52)(8) The substances sodium (Na), oxygen (O2), and sodium oxide (Na2O) participate in this chemical reaction:4Na + O2 2Na2O.Which statement best describes the reaction? What is the slope of the line with this equation y-6 = - (x - 3) ? Explain. __________is concerned with improving productivity and safety by designing workplaces, equipment, instruments, computers, workstations, and so on that take into account the physical capabilities of people. A cooler measures 8 inches by 8 inches by 3 inches. What is the surface area of the cooler?2in. The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.AA/ AO type A blood, AB type AB blood, BB/ BO type B blood, OO type O blood.A woman who is homozygous for type B blood marries a man who is heterozygous for type A. What is the genotype ratio of their offspring?What is the phenotype ratio of their offspring? 18. How has the US Constitution influenced the formation of the Florida Constitution? write down simplest ratio of 125ml and 5ml