Answer:
x + 7
Step-by-step explanation:
x2 + 4x − 21
set equal to 0
x2 + 4x − 21 = 0
factor
(x - 3) (x + 7)
x2 + 11x + 28
set equal to 0
x2 + 11x + 28 = 0
factor
(x + 4) (x + 7)
Answer:
x = 132
Step-by-step explanation:
180 - 48 = 132
Answer:
Step-by-step explanation:
Given
--- Height
--- Width
---- Length
Solving (a): The lateral surface area (L)
This is calculated as:
This gives:
Solving (b): The total surface area (T)
This is calculated as:
This gives:
If lauryn has purchased 4 books you have to do (2x-12)^4. Expand it to: (2x-12)(2x-12)(2x-12)(2x-12) multiply together. Then solve for x. If you need more help let me know.
-np - 80 < 60....add 80 to both sides
-np < 80 + 60
-np < 140...divide both sides by p
-n < 140/p ...now multiply by -1 to make n positive, and change inequality sign
n > -140/p
