Use the distributive property and combine like terms.
Volume Equation: V=4/3(pi)r^3
Surface Area: A=4(pi)r^2
11/4 + 11/4 + 11/4 + 11/4 = 44/4 which equals 11. so I believe Marley needs to buy 11 pounds of peppermints.
You can factor it more
Remember: (a^2 - b^2) = (a-b)(a+b)
(x^2 - 36) = (x - 6)(x + 6)
Now plug back to equation
(x - 6)(x + 6)(x + 7) = 0
x - 6 = 0, x = 6
x + 6 = 0, x = -6
x + 7 = 0, x = -7
Solution: x = 6, -6, -7
Answer:
Step-by-step explanation:
Substitution method can be applied in four steps.
Solve one of the equations for either x = or y = .
Substitute the solution from step 1 into the other equation.
Solve this new equation.
Solve for the second variable. ...
Step 1: Solve one of the equations for either x = or y =