Best to look up the formula for the surface area of a sphere and then find it:
A = 4πr^2, where r is the radius of the sphere. Then,
A = 4π(15 in)^2 = 4(3.14)(225 in^2) = 2826 in^2 (answer)
This is represented by the formula given in the lower left.
Yes because if you look at the tenths place you will see that 8 is bigger than 7
20 and 45 have number 5 in common
Answer:
x<-3 or x>2, 2<x<-3
Step-by-step explanation:
Subtract/add from each side then divide, if dividing by a negative reverse the sign.
Answer:
26 + 22i
Step-by-step explanation:
Given
(2 + 4i)(7 - 3i) ← expand product using FOIL
= 14 - 6i + 28i - 12i² ← i² = - 1
= 14 + 22i + 12
= 26 + 22i ← in standard form
