2 years ago

What is the circumference of a circle with area 49Pi? Round to the nearest tenth.

Mathematics

1 answer:

Mekhanik [1.2K]2 years ago

6 0

Answer:

15.6=C

Step-by-step explanation:

Area is equal to pi times radius squared. Circumference is equal to 2 times pi times radius. Divide area by pi and then take the square root of that number.

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8_murik_8 [283]

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2 years ago

Annie has two equal sized amounts of wax in two different colors she used 5/8 of the green wax and 1/3 of the blue wax to make s

lana66690 [7]

Find a common denominator that 8 and 3 can go into.. which is 24
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2 years ago

The Wilsons traveled the 2400 miles of Route 66 from Chicago,IL to Santa Monica, CA. If their total driving time was 50 hours, w

Zolol [24]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Find the general solution to 3y′′+12y=0. Give your answer as y=... . In your answer, use c1 and c2 to denote arbitrary constants

lozanna [386]

Answer:

$y(x)=c_1e^{2ix}+c_2e^{-2ix}$

Step-by-step explanation:

You have the following differential equation:

$3y''+12y=0$ (1)

In order to find the solution to the equation, you can use the method of the characteristic polynomial.

The characteristic polynomial of the given differential equation is:

$3m^2+12=0\\\\m^2=-\frac{12}{3}=-4\\\\m_{1,2}=\pm2\sqrt{-1}=\pm2i$

The solution of the differential equation is:

$y(x)=c_1e^{m_1x}+c_2e^{m_2x}$ (2)

where m1 and m2 are the roots of the characteristic polynomial.

You replace the values obtained for m1 and m2 in the equation (2). Then, the solution to the differential equation is:

$y(x)=c_1e^{2ix}+c_2e^{-2ix}$

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3 years ago

8x+3=8x I need help

ANEK [815]

X=5/8 that is the answer lol

5 0

2 years ago