7) y= x^2-4x
8) y= 2x^2-3x+1
9) y= 9x^2-4
Answer:
102.5 ft
Step-by-step explanation:
The area of a rectangle is length x width.
You need to do 20.5 x 5 = 102.5
<span>The formula for slope measures the steepness (or angle) of a line by measuring the rise (y) over the run (x). Slope = Rise/Run.</span>
Measure of angle 1 is 56
measure of angle 2 is 56
measure of angle 3 is 74
All triangle’s angles add up to 180
Simplify 1/3x to x/3
y = -x/3 - 9
Add 9 to both sides
y + 9 = -x/3
Multiply both sides by 3
(y + 9) * = -x
Regroup terms
3(y + 9) = -x
Using the formula, rewrite in standard form
Answer: x + 3y = -27
