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2 years ago

If f(x)=7x, which of the following is the inverse of f(x)?

Mathematics

2 answers:

Anna11 [10]2 years ago

6 0

Answer: f^1 (x) = x/7

Step-by-step explanation:

Apex

8090 [49]2 years ago

3 0

The inverse is f¯¹(x)=x/7.

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Solve the system be either substitution or elimination 3x-5y=21 and 2x+y=1

IRISSAK [1]

Answer:

(2,-3)

Step-by-step explanation:

I used substitution and rearranged the second equation to y=-2x+1. Then I replaced the y in the first equation with -2x+1. So, I got 3x-5(-2x+1)=21. When you solve that you get 13x=26 or x=2. Then you replace x with 2 in either equation and end up with y=-3.

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3 years ago

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Reptile [31]

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the areaof a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself tofind the area.

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3 years ago

What is the domain of the function?

Nostrana [21]

Answer:

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2 years ago

This one and thats it.

4vir4ik [10]

Answer:

you just take the data given and put it on the graph

7 0

3 years ago

PLEASE HELP

Ronch [10]

Answer:

<em><u>1 and 5</u></em>

Step-by-step explanation:

The squares have a side length of 10 and 1 square side is the radius of the half-circles. Since there are two half-circles, find the circumference for one full circle:

$C=2\pi r$

Insert the radius:

$r=10\\C=2\pi *10$

Simplify pi:

$C=2*3.14*10$

Simplify multiplication:

$C=6.28*10\\C=62.8$

The circumference of the circles is 62.8. Now find the perimeter of the exposed squares with side length 10. There are 4 exposed sides, which equals one square. Find the perimeter:

$P=10+10+10+10\\P=10+10+20\\P=10+30\\P=40$