a) Cube area = 6a^2
a = 6(5.25)^2
5.25 * 5.25 = 27.5625 * 6 = 165.375
Rounded, thats 165.38
b) Rectangular prism area = 2(wl + hl + hw)
Lets say l = 6.8, w = 8.2, h = 10
It equals about 441.52
Answer:
k = 5
Step-by-step explanation:
Given that (x + 1) is a factor of f(x) then f(- 1) = 0
f(- 1) = 3(- 1)³ + 2(- 1) + k
= 3(- 1) - 2 + k
= - 3 - 2 + k
= - 5 + k
Then - 5 + k = 0 ( add 5 to both sides )
k = 5
