Answer:
-1/8
Step-by-step explanation:
-2³/2⁶ negative exponents go in the denonimator
-1/2³ subtract exponents since the denonimator is larger
-1/8 simplify
In one week, a printing center made 1,233 copie of a 26 page article. The printing center alo printed 658 copie of a 12 page eay. How many page did the printing center print during the week?
As per given data of printing, the total number of pages print by printing center during the week is equal to 39,954 pages.
As given in the question,
Number of copies of 26 pages article print by printing center is equal to 1,233 copies
Number of copies of 12 page article print by printing center is equal to 658 copies
Total number of pages print by printing center during this one week is equal to
= ( 1233 × 26 ) + ( 658 × 12 )
= 32,058 + 7896
=39,954 pages
Therefore, for the given data of printing, the total number of pages print by printing center during the week is equal to 39,954 pages.
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f(x)=5/x-1
g(x)=4-2x
Calculate fg(x)
Answer:
Step-by-step explanation:
define function fg(x) :
Fg(x) = f(g(x))
= [tex]\frac{5}{x}[/tex] (4-2x)-1
= [tex]\frac{20}{x}[/tex] - [tex]\frac{10x}{x}[/tex] - 1
= 20 - 10x -1
= 20 - 1 - 10x
= 19 - 10x
There are five green apples and nine red apples in a basket  what is the ratio of green apples to all apples in the basket ??? what is the ratio of red apples to all apples in the basket ??
The ratio of green apples to all apples in the basket is 5:14 and the ratio of red apples to all apples in the basket is 9:14.
According to the question,
We have the following information:
There are five green apples and nine red apples in a basket.
Now, total apples in the basket are (5+9) which is 14.
Now, the ratio of green apples to all apples in the basket:
Number of green apples : total apples in the basket
5:14
Now, the ratio of red apples to all apples in the basket:
Number of red apples : total apples in the basket
9:14
Hence, the ratio of green apples to all apples in the basket is 5:14 and the ratio of red apples to all apples in the basket is 9:14.
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Which graph represents the function f(x)=(13)−x?
Answer:
Bottom left
Step-by-step explanation:
Let's look at it as (1/3)^x first. This function would have a y-intercept of (0,1) (because (1/3)^0 is 1), and would then become (1/3) times smaller for every 1 unit increment of x. This would look like the top left graph in these options. However, we are given (1/3)^-x, which means, in terms of transformations, that the graph is flipped across the y-axis. Algebraically, this looks like (1/3)^(-x) which equals to [tex]\frac{1}{(1/3)^x}[/tex], which simplifies down to 3^x, which would look like the bottom left graph.
helppppp meeee
-1+|x+4,5|=-6,2
Answer:
x= 2.7,-11.7 (sorry if im wrong) :'C
Need help with this please
Answer:
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
What is the slope in this equation?
y+7=10(x-4)
Answer:
slope = 10
Step-by-step explanation:
Solve the equation for "y". In other words, isolate "y":
y + 7 = 10(x - 4)
y = 10(x - 4) - 7
y = 10x - 40 - 7
y = 10x - 47
Above is a linear expression in slope-intercept form "y = mx + b", where "m=slope" and "b=y-intercept". "m=10", so 10 is the slope
can someone help me?
Answer:
B
Step-by-step explanation:
1.20x + 3.60 < 9.60
1.20x < 9.60 - 3.60
1.20x < 6
x < 6 ÷ 1.20
x < 5
Find the slope of the line shown on the graph to the right.
Answer: [tex]\frac{7}{3}[/tex]
Step-by-step explanation:
The two points found on the graph are:
(x₁, y₁) = (2, 4)(x₂, y₂) = (-1, -3)The slope can be calculated as:
[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{-3-4}{-1-2} =\frac{-7}{-3} =\frac{7}{3}[/tex]
Josef paid $10for 6 avocados at the store he wants to know the price of 3 avocados
Answer:
$5
Step-by-step explanation:
Since $10 for 6 avocados and 3 = half of 6,
You would half $10 too = $5
Answer:
$5
Step-by-step explanation:
divide both numbers by 2 and there is your answer
i = prt ; p = $2,000, r = 3%, and t = 2 yr.
Evaluate the expression using the given values.
Please and Thank you
The interest amount is $120 when given principal amount $2000, rate of interest per year is 3% and time period is 2 years.
Given that,
p = $2,000, r = 3%, and t = 2 yr.
We have to find the i when i=prt.
Here,
i is interest amount.
p is principal amount.
r is rate of interest per year.
t is time period.
So,
Formula for finding interest amount is
i=prt
So,
i=2000(3/100)(2)
i=20×3×2
i=120
Therefore, The interest amount is $120 when given principal amount $2000, rate of interest per year is 3% and time period is 2 years.
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NEED HELP PLEASEEEEEEEE
Answer:
1/2
Step-by-step explanation:
Because the y is going up by 0.5 which in a fraction form is 1/2 and it isn't negative 1/2 because the number is growing and is not decreasing.
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
1) Find the difference between and y
5 - 0 = 55.5 - 1 = 4.56 - 2 = 46.5 - 3 = 3.52) Find the pattern between the numbers
As we can see there is a pattern of subtract [tex]\frac{1}{2}[/tex] between every number
To find this just subtract each number by the other
5 - 4.5 = 0.54.5 - 4 = 0.54 - 3.5 = 0.5As 0.5 is equal to [tex]\frac{1}{2}[/tex] the answer to the solution would be [tex]\frac{1}{2}[/tex]
Hope this helps, have a great day!!
Consider a causal continuous time LTI system whose input x(t) and output y(t) are related by the following differential equation d/dt y(t) + 4y(t) = x(t) Find the Fourier series representation of the output y(t) for each of the following inputs: A. x(t) = cos(3 pi T) B. x(t) = sin(3 pi t) + cos(6 pi t+pi/4)
The Fourier series representation of the output y(t) is;
(a) y(t) = 0.097 cos(3πt - 67)
(b) y(t) = 0.097 sin(3πt - 67) + 0.051 cos(6πt + π/4 -78)
Given;
A causal continuous-time LTI system whose input x(t) and output y(t) are related by the following differential equation;
[tex]\frac{d}{dt}y(t) + 4y(t) = x(t)[/tex]
By taking Laplace's Transform;
sY(s) + 4Y(s) = X(s)
Y(s)/X(s) = H(s) = 1/(s + 4)
(a) When input x(t) = cos3πt
∵ ω = 3π
H(jω) = 1/(jω + 4)
H(jω₁) = 1/[tex]\sqrt{w^2+4^2}[/tex] = 0.097
∠H(jω) = -tan⁻¹(ω/4) = -67° = Ф₁
y(t) = H(jω₁)*cos(3πt + Ф₁)
→ y(t) = 0.097 cos(3πt - 67)
(b) When input x(t) = sin3πt + cos(6πt + π/4)
∵ ω = 6π
H(jω) = 1/(jω + 4)
H(jω₂) = 1/[tex]\sqrt{w^2+4^2}[/tex] = 0.051
∠H(jω) = -tan⁻¹(ω/4) = -78° = Ф₂
y(t) = H(jω₁) * sin(3πt + Ф₁) + H(jω₂) * cos(6πt + π/4 + Ф₂)
→ y(t) = 0.097 sin(3πt - 67) + 0.051 cos(6πt + π/4 -78)
The Fourier series representation of the output y(t) is;
y(t) = 0.097 cos(3πt - 67)
y(t) = 0.097 sin(3πt - 67) + 0.051 cos(6πt + π/4 -78)
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a population has a mean of 75 and a standard deviation of 10. samples of size 50 are chosen and the sample means are recorded. what is the expected value of the sample mean?
A population has a standard deviation of 10 and a mean of 75.
The sample mean has a standard deviation of 5 and an expectation of 100.The empirical rule states that there is a 68% probability of being between 95 and 105 (within one standard deviation of its expected value) if it is approximately normal.
What is meant by a standard deviation?
A measure of how dispersed the data are in relation to the mean is called the standard deviation (or ).Data with a low standard deviation are grouped around the mean, while data with a high standard deviation are more dispersed.
How can I determine the standard deviation?
Step 1: Locate the mean. Step 2: Find the square of the distance from the mean for each data point. Step 3: Sum the results of Step 2's values. Step 4: Divide by how many data points there are.
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What is the slope of the line on the graph?
Need help.
help please this is confusing will will give brainiest
Answer:
Slope = - 2
Explanation step by step:
Find the sale price of the item. Round to two decimal places if necessary.
Original price: $207.65
Markdown: 77%
The sale price is $
Answer:
$47.76
Step-by-step explanation:
77 : 100 = x : 207.65
x = (207.65 * 77)/100
x = 159.8905
final price = 207.65 - 159.8905 = 47.7595= $47.76
What is the standard deviation for the set of data { 6,7,8,9,10}? Find the standard deviation by completing the table.
Standard deviation for the given set of data { 6,7,8,9,10} is equal to √2.
As given in the question,
Given set of data is equal to :
{ 6,7,8,9,10}
[tex]x_{i}[/tex] = { 6,7,8,9,10}
Here total number of observation 'N' is equal to 5.
Mean [tex]\bar{x}[/tex] = ∑x / n
= ( 6+ 7+ 8 + 9 + 10 ) / 5
= 40 /5
= 8
[tex]\sum (x_{i} -\bar{x})^{2}[/tex] = ( 6- 8)² + (7-8)² + (8 - 8)²+ ( 9 -8)² + (10 - 8)²
= 4 + 1+ 0 + 1+ 4
= 10
Standard deviation = [tex]\sqrt{ \frac{\sum (x_{i} -\bar{x})^{2}}{N}[/tex]
= √10/5
= √2
Therefore, standard deviation for the given set of data { 6,7,8,9,10} is equal to √2.
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If you go out to eat with 3 friends and your meal was $72.50.
The sales tax is 6.75% sales tax and you tip the waiter 15%.
How much is the total bill?
The total bill that will be paid by the friends is $88.27.
How to calculate the total bill?Cost of meal = $72.50
Sales tax = 6.75%
The amount on tax will be:
= 6.75% × $72.50
= $4.89
Tip = 15% × $72.50
Tip = $10.88
The total bill will be:
= Cost of bill + Tax + Tip
= $72.50 + $4.89 + $10.88
= $88.27
The cost is $88.27.
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A carpenter cuts a board 3 3/8 A carpenter cuts a board 6 1/2 feet long.How long is the remaining piece of board? (Simplify your answer and write it as a mixed number.)
Answer:
Subtract 3 3/4 from 10 1/2. Note that the LCD is 4, so 10 1/2 = 10 2/4.
What is 10 2/4
- 3 3/4
-------------------------
?
Since 2/4 is smaller than 3/4, you must borrow 1 from that 10.
Now your problem looks like 9 6/4
-3 3/4
----------
6 3/4 (answer)
The remnant of the board is 6 3/4 feet long.
Step-by-step explanation:
drake makes custom sails for sailboats. he received an order for a sail that is 8 ft long and 18 feet tall. How many square feet of fabric does he need to make the sail?
Drake needs 144 ft² (squared feet) of fabric to make the 8 ft long and 18 ft tall sail.
What is the area of two lengths?The area (square units) of two lengths is the product of the multiplication of the two lengths.
The area refers to the space occupied by a two-dimensional object or structure.
Areas are stated in square feet to show the squared units occupied by such objects.
The length of a sail = 8 feet
The height of the sail = 18 feet
The square area = 144 ft² (8 x 18)
Thus, Drakes requires a fabric measuring 144 ft² (squared feet) to make the sail.
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Simplify 3√B^2
please do it quickly first right answer gets brainliest
Steve drives an electric car. He can drive 425 kilometres before he needs to stop and re-charge his car. It takes 10 minutes to charge 50 kilometres. How long does Steve have to wait for his car to fully charge?
Answer:
Step-by-step explanation:
The question is asking how many times does 50 go into 425?
or 450/50 = ?
my calculator says it's 9 . What does your calculator say?
since we now know it's 9 times, we can just multiply 9 * 10 minutes
by observation of 9*10, I get the answer, what answer do you get?
Which graph represents this function?
f(X)=√X+1
2x + 21/5 = 3 Solve for x.
Simplify your answer as much as possible.
Answer:
x= -3/5
Step-by-step explanation:
2x+21/5=3
2x+21/5-21/5=3-21/5 (subtract 21/5 from both sides)
2x=3-21/5 (L.C.M=5)
2x= 15-21/5
2x= -6/5
2x/2=-6/5/2 (divide both sides by 2)
x= -6/5x1/2 (reciprocal)
x= -6/10
simplify:
x= -3/5
If f(x) = 4x+9 and g(x) = x-6, what is f(x) times g(x)?
A.) x^2 - 15x + 8
B.) 4x^2 - 15x - 54
C.) x^2 - 54x - 15
D.) 4x^2 + 8x -54
Answer:
B.) 4x^2 - 15x - 54
Step-by-step explanation:
You want the product f(x)·g(x) when f(x) = 4x+9 and g(x) = x-6.
Binomial multiplicationThe distributive property can be used to find the product. Each term of one binomial is multiplied by every term of the other, and like terms are combined.
f(x)·g(x) = (4x +9)·(x -6)
= 4x(x -6) +9(x -6)
= 4x² -24x +9x -54 = 4x² +(-24 +9)x -54
f(x)·g(x) = 4x² -15x -54 . . . . . . . . . . matches choice B
__
Additional comment
The product of two binomials is sometimes described using the mnemonic FOIL, for First, Outer, Inner, Last. These refer to the locations of the terms involved in the four products
(4x +9)·(x -6) — First(4x +9)·(x -6) — Outer(4x +9)·(x -6) — Inner(4x +9)·(x -6) — LastThese products are the same as the ones we show above.
The FOIL mnemonic is only helpful for two binomials. Any polynomials can be multiplied using the distributive property.
If the geometric mean of 10 and x is 30, what is the value of x?
Step-by-step explanation:
10 + x = 30
or, x = 30 - 10
x = 20
Module 10 Honors Assignment – Geometry
Use the area of the shapes to determine the geometric probability for each problem.
Suppose a dart is thrown at a regular hexagon dartboard with the design
shown. (Reminder: regular polygons have congruent sides and congruent
angles). Find the probability that a dart hits one of the shaded areas. The
white figure is a rectangle. Be sure to show all work.
The probability that a dart hits one of the shaded areas is 1/6 when a dart is thrown at a regular hexagon dartboard with the design shown.
What is probability?The area of mathematics known as probability studies potential outcomes of events as well as their relative probabilities and distributions.
Here,
angle of hexagon=360/6=60°
using trigonometric ratios,
area of triangle=bh/2
=(h*h√3/2)/2
=h²√3/4
area of hexagon=6*area of triangle
=6*(h²√3/4)
=3√3*h²/2
area of rectangle=bh
=h*h√3
=h²√3
area of shaded region,
=3√3*h²/2-h²√3
=h²√3/2
area of 1 shaded region=(h²√3/2)/2
=h²√3/4
Probability of hitting one shaded area,
=(h²√3/4)/(h²3√3/2)
=1/6
When a dart is thrown at a standard hexagonal dartboard with the pattern shown, the likelihood that it will land in one of the shaded areas is 1/6.
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a square has a perimeter of 12 ft what is the length of each side
Answer:
3 feet
Step-by-step explanation:
All 4 sides are equal so 12/4=3
Expand 2x(3x+y) how do you do this please help
hello can someone help me pls
1. The number of sides of the polygon is of: 12 sides.
2. The missing exterior angles are of: α = 48.5º.
3. The size of the exterior angle is of 20º, hence the polygon has 18 sides.
What is the relation between the measure of the exterior angles and the number of sides of a regular polygon?A regular polygon is a polygon in which all the sides have the same length.
The relation between the measure of the exterior angles of a regular polygon and the number of sides is given as follows:
Measure of each angle = 360º/number of sides.
For item a, the measure of each angle is of 24º, hence the number of sides is obtained as follows:
24º = 360º/number of sides.
24n = 360
n = 360/24
n = 12 sides.
The sum of the measures of the external angles of a polygon is always of 360º.
Hence, for item 2, the missing angles are obtained as follows:
2α + 90 + 55 + 40 + 78 = 360
2α + 263 = 360
2α = 97
α = 97/2
α = 48.5º.
An interior angle and it's exterior angle are supplementary, hence, for item 13, the measure of the exterior angle is of:
Exterior angle = 180º - 160º = 20º.
Then the number of sides of the polygon is obtained as follows:
20n = 360
n = 360/20
n = 18 sides.
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