Answer: (-11)
Step-by-step explanation: 7+7x=-70
7-7+7x=-70-7
7x=-77
-77/7=-11
Answer:
Step-by-step explanation:
2z-4=16
2z=20
z=10
10 mg
Surface area of the base = 4^2 = 16 units^2.
Area of each triangular side = 1/2 * 4 * 3 = 6 unts^2
Total surface area of the pyramid = 16 + 4 * 6 = 40 unit^2 (answer)
My best guess is D.
But I'm not too sure about it.
Answer:
x = -4
Step-by-step explanation:
Multiply both sides by 2. Move constant to the right-hand side and change the sign. Add the numbers. And change the signs on both sides of the equation.
