Answer:
See steps below
Step-by-step explanation:
-3(2x+7)=-29-4x
Use the distributive property
-6x-21=-29-4x
Add 21 to each side
-6x=-8-4x
Add 4x to both sides
-2x=-8
Divide by -2
x=4
Answer:
4374
Step-by-step explanation:
common ratio is -3
geometric sequence
an = a1 * r^(n-1)
a8 = -2*-3^(8-1)
a8 = -2*-3^7
a8 = -2 * (-2187)
a8 = 4374
Surface area of the the rectangles:
8 * 5 + 8 * 4 + 8 * 3 = 96
Surface area of the two triangles:
Use bh/2 base time height over 2
(4 * 3)/2 = 6
There are 2 triangles, 2 * 6 = 12
12 + 96 = 108
Answer:
129 :)
Step-by-step explanation:
