Answer:
i have done the cutting of x's exponent
Step-by-step explanation:
= 3x - 30+9 =0
= 3x - 21 =0
= 3x= 21
= x = 21/3
x= 7 this the answer
Answer:
141 square inches
Step-by-step explanation:
Area of a triangle: Base*Height*1/2
Area of a trapezoid: Height * (Base1 +Base2) / 2
Triangle Base = 6
Triangle Height = 8
6*8*1/2 = 24 square inches
Trapezoid Height = 9
Trapezoid Base1 = 16
Trapezoid Base2 = 10
9*(16+10) / 2 = 117 square inches
Total = Area of triangle + Area of trapezoid
Total = 24 + 117 = 141 square inches
Answer:

Step-by-step explanation:
Isolate x on one side of the equation.
x+11-11=3-11 (Subtract 11 from both sides.)
3-11 (Solve & Simplify.)
3-11=-8
X=-8

So, the correct answer is x=-8.
Answer:
$2766.67
Step-by-step explanation:
415/.15 = 2766.666666666666667