The surface area of a sphere:
A = 4 pi r^2
where pi = 3.1416
r is the radius
since diameter is given
r = d / 2
r = 16 / 2
r = 8
A = 4 pi (8^2)
A = 804 sq in is the surface area of the disco ball
Answer:
15
Step-by-step explanation:
15 can go into 90, 6 times. It is neither a multiple of 6 or 9. It is larger than 10 and smaller than 20.
Answer:
Hope this Helped ;-;
Step-by-step explanation:
let the number be X
it's five Half's = 5/2×x
by the condition
5/2x-17 =48
X = 48×-85/2
X = 24 × -85
Answer:
Step-by-step explanation:
Consider the figure as 3 parts: semicircle with radius of 4 in, rectangle with 7x9 in and rectangle 6x14 in.
<u>Area of semicircle:</u>
- A = 1/2*πr² = 1/2*3..14*4² = 25.12 in²
<u>Area of rectangles:</u>
- 7*9 = 63 in²
- 6*14 = 84 in²
<u>Total area:</u>
- 25.12 + 63 + 84 = 172.12 in²
Answer:
x=-28
Step-by-step explanation:
you multiply the number first
and you calculate
then you move constant to the right
you changes the sign
done!
