Answer:
7/5
Step-by-step explanation:
it is 2/7 more than what it was (5/5)
(x-7)(x+12)
X^2 +12x-7x-84
x^2+5x-84. <- answer
Answer:
21 miles
Step-by-step explanation:
20 gallons = 420 miles
Divide by 20
1 gallon = 21 miles
Answer:
k=17
Step-by-step explanation:
Given F(x)=2x+3 shifts 10 units when it is replaced with the graph f(x)=2x-k.
The method to solve this kind of questions is find where the graph meets the x axis then add ten units to it .The obtained x coordinate is the point where the second graph meets the x axis.
Now first find where the F(x)=2x+3 meets the x axis by substituting F(x)=0.


Now add 10 to this x coordinate , we get x1=
=
this is x coordinate where the second line meets the x-axis.
The second line is F(x)=2x-k.
now f(x)=0 and x=17/2
On substitution we get 
k=17
Use this formula to help you find the answer V= LxWxH or V=BxH