Answer: (A) The product of two numbers with the same sign is positive.
Since the numbers in each pair have the same sign, the product will be positive.
Answer:
w = -16
Step-by-step explanation:
w + (-2) = -18
-18 - (-2) = w = -16
w= -16
Check your work:
-16 + (-2) = -18
Answer:
Let's say something costs 100 pounds. If the cost is increased by 10 percent then it goes to 110 pounds. 10 percent of 110 is 11 so 110-11 is 99 (less than earlier. There you go.
Answer:
(x+5)^2=81 would be correct
Step-by-step explanation:
solution (if you want it)
x² + 10x + 25 = 81
x² + 10x - 56 = 0
(x + 14)(x - 4) = 0
x = 4, x = -14
