Answer:
(x+1)(x-1) and x = -1, 1, 2
Step-by-step explanation:
x^2 - 1 factors to (x+1)(x-1)
x+1 = 0; x = -1
x-1 = 0; x = 1
x-2 = 0; x = 2
The answer is the initial cost is 4500
Given that the map reported that <span>the scale is 1 inch to 20 miles.
Recall that there are 63,360 inches in 1 mile, thus, in 20 miles, we have 20 x 63,360 = 1,267,200
Therefore, the scale of </span><span>1 inch to 20 miles can also be represented as 1 to 1,267,200</span>
Answer:
Line 3
Step-by-step explanation:
→ Calculate gradient

Answer:
17 centemeters
Step-by-step explanation: