Answer:
C
Step-by-step explanation:
Given
(3x² + 5x - 8) + (5x² - 13x - 5) ← remove the parenthesis
= 3x² + 5x - 8 + 5x² - 13x - 5 ← collect like terms
= 8x² - 8x - 13 → C
Answer:
121
Step-by-step explanation:
Let u be 1 unit.
5u+11u=176
16u=176
u=176÷16
=11
11u=11×11
=121
Answer:
She owes more than $5
Step-by-step explanation:
Check balance is -$5. Jen needs to pay $5 to have no debt. -5 + 5 = 0.
She might need to pay more than $5 to have credits on her account balance.
Answer:
Widyh = 8 units
Step-by-step explanation:
Perimeter = 2/width+length)
then:
48 = 2(W+L)
W = L-8
W = Width
L = Length
then:
48 = 2((L-8)+L)
48 = 2(2L88)
48 = 2*2L - 2*8
48 = 4L - 16
48 + 16 = 4L
64 = 4L
L = 64/4
L = 16
W = L-8
W = 16-8
W = 8
Check:
48 = 2(16+8)
48 = 2*24