Ask question

Ask question

All categories

2 years ago

15

The area of a circle is 504 m2. which is the circumference of the circle? (use the value of 3.14 for π.) 160.5 m 79.6 m 25.3 m 1

2.7 m

1 answer:

Anna [14]2 years ago

8 0

79.6.

Remember, the formula for area of a circle is pi x radius^2, and for circumference of the circle is diameter x pi or 2 x radius x pi

You might be interested in

Can someone please help me with this? Mhanifa? I will mark brainliest

den301095 [7]

Answer:

Option C 20

GOOD LUCK FOR THE FUTURE! :)

8 0

1 year ago

Nancy wants to buy 32 notebooks to give to her classmates, each notebook cost $1.75, how much will Nancy pay for 32 notebooks?

beks73 [17]

Answer:

Step-by-step explanation:

32n($1.75/n)=$56

Answer D

8 0

2 years ago

Read 2 more answers

If you on a motorcycle trip of 30 miles in the and 5\19 of the trip is downhill, how many miles of the trip are not downhill? Re

Bess [88]

Answer:

1/4 of the trip is not down hill

8 0

2 years ago

Find a particular solution to y" - y + y = 2 sin(3x)

leonid [27]

Answer with explanation:

The given differential equation is

y" -y'+y=2 sin 3x------(1)

Let, y'=z

y"=z'

$\frac{dy}{dx}=z\\\\d y=zdx\\\\y=z x$

Substituting the value of , y, y' and y" in equation (1)

z'-z+zx=2 sin 3 x

z'+z(x-1)=2 sin 3 x-----------(1)

This is a type of linear differential equation.

Integrating factor

$=e^{\int (x-1) dx}\\\\=e^{\frac{x^2}{2}-x}$

Multiplying both sides of equation (1) by integrating factor and integrating we get

$\rightarrow z\times e^{\frac{x^2}{2}-x}=\int 2 sin 3 x \times e^{\frac{x^2}{2}-x} dx=I$

$I=\frac{-2\cos 3x e^{\fra{x^2}{2}-x}}{3}+\int\frac{2x\cos 3x e^{\fra{x^2}{2}-x}}{3} dx -\int \frac{2\cos 3x e^{\fra{x^2}{2}-x}}{3} dx\\\\I=\frac{-2\cos 3x e^{\fra{x^2}{2}-x}}{3}+\int\frac{2x\cos 3x e^{\fra{x^2}{2}-x}}{3} dx-\frac{2I}{3}\\\\\frac{5I}{3}=\frac{-2\cos 3x e^{\fra{x^2}{2}-x}}{3}+\int\frac{2x\cos 3x e^{\fra{x^2}{2}-x}}{3} dx\\\\I=\frac{-2\cos 3x e^{\fra{x^2}{2}-x}}{5}+\int\frac{2x\cos 3x e^{\fra{x^2}{2}-x}}{5} dx$

8 0

2 years ago

7 + 2X = 5<br> 3<br> ..... zzzzzzzz

Alex787 [66]

Answer:

23

Step-by-step explanation:

please mark brainliest

8 0

2 years ago

Read 2 more answers