Answer:
L= 18 in
W= 8 in
Step-by-step explanation:
Step one:
The length of a rectangle is 10 inches longer than its width
let the width be x
so the lenght is x+10
the area of the rectangle is 144 square inches
Step two:
the factors for the quadratic expression is
18 and -8
the width is 8 in
the length is 8+10= 18 in
Answer:
- -28y^4 - 7y^3 + 62y^2 + 5y - 30
Step-by-step explanation:
<u>Opening the parenthesis and simplifying by combining like terms:</u>
- (6 - y - 4y^2)(-5 + 7y^2) =
- 6(-5) +6(7y^2) - y(-5) -y(7y^2) -4y^2(-5) -4y^2(7y^2) =
- -30 + 42y^2 + 5y - 7y^3 +20y^2 -28y^4 =
- -28y^4 - 7y^3 + 62y^2 + 5y - 30
Answer:
part a) The rate per unit is decreasing by -0.00001.
Step-by-step explanation:
y2-y1
-------- = slope
x2-x1
So if you plug it into the calculator, you should get -0.00001.
pretty small number :D ...but remember it's out of thousands of units.
Answer: 20%
<u>Step-by-step explanation:</u>
= 
= ÷ 
= 
= 20%
