Answer:
115
Step-by-step explanation:
Prime factors of 13225 will be
13225=5×5×23×23
Taking one number from each pair of the prime numbers we get:
13225=5×23
Hence 13225=115
Answer:
201.06 cu in
Step-by-step explanation:
Answer:
The area of the circle is 50.24 mm
²
Step-by-step explanation:
To solve this exercise we need to use the area formula of a circle:
a = area
r = radius = 4mm
π = pi = 3.14
a = π * r²
a = 3.14 * (4mm
)²
a = 3.14 * 16mm
²
a = 50.24 mm
²
The area of the circle is 50.24 mm
²
Answer:
the answer is d because the numbers are multiples of eachother
Step-by-step explanation:
Answer:
or ![V=136.93\pi\ cm^3](https://tex.z-dn.net/?f=V%3D136.93%5Cpi%5C%20cm%5E3)
Step-by-step explanation:
The surface area of a sphere is:
![A_s=4\pi r^2](https://tex.z-dn.net/?f=A_s%3D4%5Cpi%20r%5E2)
Where r is the radius of the sphere
In this case we know that ![A_s = 275.561\ cm^2](https://tex.z-dn.net/?f=A_s%20%3D%20275.561%5C%20cm%5E2)
So
![4\pi r^2=275.561](https://tex.z-dn.net/?f=4%5Cpi%20r%5E2%3D275.561)
We solve the equation for r
![4\pi r^2=275.561\\r^2 = \frac{275.561}{4\pi}\\\\r=\sqrt{ \frac{275.561}{4\pi}}\\\\r=4.683\ cm](https://tex.z-dn.net/?f=4%5Cpi%20r%5E2%3D275.561%5C%5Cr%5E2%20%3D%20%5Cfrac%7B275.561%7D%7B4%5Cpi%7D%5C%5C%5C%5Cr%3D%5Csqrt%7B%20%5Cfrac%7B275.561%7D%7B4%5Cpi%7D%7D%5C%5C%5C%5Cr%3D4.683%5C%20cm)
Now we know the radius of the sphere.
The volume of a sphere is:
![V=\frac{4}{3}\pi r^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3)
We substitute the value of the radius in the formula
![V=\frac{4}{3}\pi (4.683)^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%284.683%29%5E3)
![V=430.19\ cm^3](https://tex.z-dn.net/?f=V%3D430.19%5C%20cm%5E3)