Answer:
Answer in the pic with steps
Hope it helps
Answer:
x=-7
x=7
Step-by-step explanation:
we have

Solve for x
Adds 98 both sides


Divide by 2 both sides


take square root both sides

therefore
The solutions are
x=-7
x=7
Answer:
1
Step-by-step explanation:
You only need two points to find the slope.
Let's use (1,7) and (2,8).
The formula for slope is (y2-y1)/(x2-x1)
Let's plug the values in:
(8-7)/(2-1) = 1.
So, the slope is 1.
Percent decrease = (original number - new number) / original number....* 100
= (45 - 27.5) / 45.....* 100
= 17.5 / 45....* 100
= 0.3888 * 100
= 38.9 % decrease <== thats rounded