3 years ago

What is the area of a circle that has a circumference of 12 pi

Mathematics

1 answer:

emmainna [20.7K]3 years ago

3 0

Answer:

r=6

Step-by-step explanation: first you will need to is 2pi=12pi divide both sides by pi. 2r=12 divide both sides by 2.r=6

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Explain why it is correct to claim that A/B < B/A is true.

PolarNik [594]

Answer:

Think of it as a small number and a large number. If the large number is being divided by a small number, of course that would be larger than the small number being divided by the large number.

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3 years ago

In this problem,y = 1/(x2 + c)is a one-parameter family of solutions of the first-order DEy' + 2xy2 = 0.Find a solution of the f

trasher [3.6K]

Differentiate the given solution:

$y=\dfrac1{x^2+C}\implies y'=-\dfrac{2x}{(x^2+C)^2}$

Substitute $y$ and $y'$ into the ODE:

$-\dfrac{2x}{(x^2+C)^2}+2x\left(\dfrac1{x^2+C}\right)^2=0$

and it's easy to see the left side indeed reduces to 0.

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3 years ago

Which expression is equivalent

NeTakaya

Answer:

the first one

Step-by-step explanation:

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3 years ago

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Please help!!! I will mark someone brainliest!

valina [46]

Answer:

a = 8, b = $\frac{3}{2}$

Step-by-step explanation:

Given the exponential function

f(x) = a $b^{x}$

To find a and b use the given coordinate points on the graph

Using (0, 8 ), then

8 = a $b^{0}$ [ $b^{0}$ = 1 ] , then

a = 8

f(x) = 8 $b^{x}$

Using (2, 18 ) , then

18 = 8b² ( divide both sides by 8 )

$\frac{18}{8}$ = b² , that is

b² = $\frac{9}{4}$ ( take the square root of both sides )

b = $\sqrt{\frac{9}{4} }$ = $\frac{3}{2}$

Thus

f(x) = 8 $(\frac{3}{2}) ^{x}$

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3 years ago

The midpoint of is M(4,-3) One endpoint is G(-2,2). find the coordinates of end point

motikmotik

The other endpoint is (10, -8

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3 years ago