Answer:
392 cm^3
Step-by-step explanation:
Let X represent the edge of a cube
let t represent the thickness of the paint.
Volume of a cube = x^3
V = x^3
Differentiate V with respect to x
dV/dx = 3x^2
dV = 3x^2 dx
dx = 2dt
= 2(0.06)
= 0.12
dV = 3(33)^2 (0.12)
dV = 392.04cm^3
dV = 392 cm^3
x = 2(x+2) + 3(x-1) = 3x + 7
2x + 4 + 3x -3 = 3x + 7
2x + 3x - 3x = 7 - 4 + 3
2x = 6
x = 3
Answer:
4 + 12 + 36 + ...
Step-by-step explanation:
4, 12, 36, ... is a geometric sequence, it has a common ratio of 
When we add the terms of a geometric sequence we get a geometric series.
4+12+36+ ... is a geometric series, it has a common ratio of
4 + 12 + 20 + ... is not a geometric series because it has no common ratio
The second choice is correct
Answer:
JL is not congruent to KM
Step-by-step explanation:
The length of JL is 23-21 = 2.
The length of KM is 25-22 = 3
So, because the lengths are not equal,
JL is not congruent to KM
