3 years ago

What is the inverse function of f(x) = -2? Hurry please

Mathematics

1 answer:

notsponge [240]3 years ago

4 0

Answer:

Step-by-step explanation:

2x/x-1

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1 2 3 4 y 0 3 6 9 12 What is the slope of the line that sents this relationship?

sergeinik [125]

Answer:

Step-by-step explanation:

Slope can be determined by dividing the difference of the y values by the difference of the x values. (y2-y1)/(x2-x1)

in this problem, select any two points, such as (1,3) and (3,9).

(9-3)/(3-1) ——> 6/2 ——> 3

The slope is three

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Answer:

Step-by-step explanation:

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The circular blade on a saw has a diameter of 7.25 inches and rotated at 4800 revolutions per minute.

Ann [662]

Answer:

Part A) The angular speed is $160\pi\frac{rad}{sec}$

Part B) The linear speed is $151.8\frac{ft}{sec}$

Step-by-step explanation:

step 1

Find the angular speed

we have

$4,800\frac{rev}{min}$

remember that

$1\ rev=2\pi\ radians$

$1\ min=60\ sec$

substitute

$4,800\frac{rev}{min}=4,800*(2\pi)/60=160\pi\frac{rad}{sec}$

step 2

Find the linear speed of the teeth in feet seconds

we have

$4,800\frac{rev}{min}$

remember that

$1\ rev=\pi D$

$1\ min=60\ sec$

$1\ ft=12\ in$

$D=7.25\ in=7.25/12\ ft$

substitute

$4,800\frac{rev}{min}=4,800*(\pi*7.25/12)/60=151.8\frac{ft}{sec}$

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3 years ago

The slopes of perpendicular lines are

jeka94

The slopes of perpendicular lines are opposite and reciprocals.

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What is the exact area of a circle with a diameter of 18 feet?

Kitty [74]

The formula for the area of a circle is

$\pi r^{2}$

We know the diameter, and the radius is half of the diameter. So the radius is 9. Now we plug that into the formula.

$\pi 9^{2} =81 \pi$

So the answer is B, 81 pi square feet

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3 years ago