Answer:
Surface area of sphere = 4πr²
r = radius
and radius = diameter/2
radius = 13/2
= 6.5cm
Surface area = 4 × π × 6.5
= 26 × π
= 81.68
= 81.7cm²
Hope this helps.
Answer:
10 and 1/5
Step-by-step explanation:
11-4/5=10 and 1/5. x must be 10 and 1/5
Answer: n=-7
Step-by-step explanation:
3n-7=6n-2n
3n-7=4n
-7=n
n=-7
Answer:
-All integers are whole numbers.
-All rational numbers are natural numbers.
Step-by-step explanation:
