The radius is 5cm
Step-by-step explanation:
The surface area of a sphere is given by:
Here
Given
SA = 100π cm^2
Putting the values in the formula
Taking square root on both sides
The radius is 5cm
Keywords: Surface area, Radius
Learn more about surface area of sphere at:
#LearnwithBrainly
Answer:
The 1st term is -67
Step-by-step explanation:
I. When Sn = 
(
)
If Sn = 124, n = 8 and 
= 98
124 = 8/2(a + 98)
124 = 4(a + 98)
124 = 4a + 392
124 - 392 = 4a
-268/4 = a
-67 = 
Hope that help :D
Answer:
a^2 - 25.
Step-by-step explanation:
(5 + a)(-5 + a)
= -25 + 5a - 5a + a^2
= a^2 - 25.
6 miles as 31678 feet is 5 miles
42 less then a number z....
z - 42 <== ur expression
