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2 years ago

Find the inverse function of y=7x.

Mathematics

1 answer:

olga2289 [7]2 years ago

5 0

Answer:

f^−1(x)=x7

Step-by-step explanation:

To find the inverse , inerchange the variable and slove for Y

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What is the area of a rectangle with a length of 3/4 yard and width of 5/6 yard?

Tanzania [10]

Put the numbers into the area of a rectangleformula and multiply the numerator then multiply the denominators, then take out common factors to simplify.

area of a rectangle = length • width
a = l • w
a = 3/4 • 5/6
a = 15/24
a = 5/8 yard^2

7 0

3 years ago

Which phrase best describes the translation from the graph y = 2(x - 15)2 + 3 to the graph of y = 2(x - 11)2 + 3?

musickatia [10]

What change has been caused?

y=2(x-15)²+3
y=2(x-15+4)²+3
y=2(x-11)²+3

Change in x (+4)

Means

translation is 4units left

Option A

8 0

2 years ago

Read 2 more answers

Find the surface area of the composite solid.

Westkost [7]

We have:

4 triangles with the base b = 5ft and the height h = 6ft

4 rectangles with the lenght l = 5ft and the width w = 4ft

1 square with side a = 5ft.

The formula of an area of a riangle:

$A_T=\dfrac{1}{2}bh$

Substitute:

$A_T=\dfrac{1}{2}(5)(6)=\dfrac{1}{2}(30)=15\ ft^2$

The formula of an area of a rectangle:

$A_R=lw$

Substitute:

$A_R=(5)(4)=20\ ft^2$

The formula of an area of a square:

$A_S=a^2$

Substitute:

$A_S=5^2=25\ ft^2$

The Surface Area of composite solid:

$SA=4A_T+4A_R+A_S$

Substitute:

$SA=4(15)+4(20)+25=60+80+25=165\ ft^2$

<h3>Answer: The Surface Area of the composite solid is 165 ft².</h3>

3 0

3 years ago

Y=x^2-2x what the vertex

____ [38]

I use my calculator
Y1 (the blue one) = x^2-2x
Graph
2nd trace minimum
X= 1 and y = -1
So the vertex is (1,-1)

6 0

3 years ago

3x-2y=14 <br> y=5x<br><br> Solve by substitution

irina [24]

3x - 10x = 14

-7x = 14

x = -2

5 0

3 years ago