No 1 is not your answer, -1 would be your answer.
To show my work, here.
1. Expand (<span>6x −6= 4x − <span>8)
2. </span></span>Subtract <span>4x</span> from both sides (<span>6x−6−4x=−<span>8)
3. simplify 6x - 6 - 4x to 2x - 6 ( 2x - 6 = -8)
4. Add 6 to both sides ( 2x = -8 + 6)
5. simplify -8 + 6 to -2 (2x = -2)
6. divide both sides by 2 (x = -1)</span></span>
Answer:
C 126 in²
Step-by-step explanation:
The area of a trapezoid is given by
A = 1/2 (b1+b2) h
b1 is the bottom base length = 12 inches
b2 is the top base length = (2+12+2) = 16 inches
h = height = 9 inches
A = 1/2 (12+16) *9
A = 1/2(28)(9)
A =126 in^2
Factor out common factors. 10x+15 >>> 5(2x+3)
3 x + 9 = 44 - 2 x
subtract 9 from both sides:
3 x + 9 - 9 = 44 - 2x - 9
3 x = -2 x +35
Add 2 x to both sides:
3 x + 2 x = -2 x + 35 + 2 x
5 x = 35
Divide both sides by 5 :
5x / 5 = 35/ 5
x = 7
hope this helps!
20)
using
<span>a^3 + b^3 = (a+b)(a^2 − ab + b^2)
</span>so
w^3 + 125z^3
= w^3 +(5z)^3
= (w + 5z)(w^2 - 5wz + 25z^2)
hope it helps
