Answer:
81-25k²
Step-by-step explanation:
We need to write the expression for "The quantity 81 minus 5k, squared".
Square of any number x is given by x².
Square of 5k is given by : (5k)²= 5²×k²=25k²
Now subtract 25k² from 81.
It means we get : 81-25k². It is required expression.
Answer:
13 times 13 is 169
Step-by-step explanation:
I did it by doing it in my head
:)
Answer:
10365
Step-by-step explanation:
12579 - 2214
= 10365
Answer:
C should be your answer if I'm not right then forgive me please.
Step-by-step explanation:
Answer:
A: radius of the sphere
Step-by-step explanation:
The formula for surface area is A = 4πr^2
With r being the radius and A the surface area.
For volume it is
V= (4/3)πr^3
