Answer:
v^2 - 4v - 32
Step-by-step explanation:
Expand (v - 8) (v + 4) using the FOIL method.
apply the distributive property.
v (v + 4) - 8 (v + 4)
v x v + v x 4 - 8 (v + 4)
v x v + v x 4 - 8v - 8 x 4
simplify and combine like terms.
v^2 + v x 4 - 8v - 8 x 4
v^2 + 4 x v - 8v - 8 x 4
v^2 + 4v - 8v - 32
v^2 - 4v - 32
Answer:
The slopes are perpendicular.
Step-by-step explanation:
First we are going to find the slope-inercept form from the equation, -5x + 10y = 5.
Solve for y.
-5x + 10y = 5
<u>+5x. =+</u><u>5x</u>
10y = 5x + 5
So we now have
Looking at the equation above, the slopes are perpendicular.
Multiply the two fractions together.
The answer would be D. 1/3 x 4/5
2. If Greg drove 135miles in 3 hours, we must divide the number of miles by the number of hours to determine how many miles per hour he traveled:
135/3= 45mph
3. If she is payed $45 for 5 hours, we must divide the amount of money by the number of hours to find how much money she made per hour:
45/5= 9 dollars per hour
4. if she payed $0.72 for 8 ounces of water, we must divide the cost by the number of ounces to find out how much they spent per ounce:
.72/8= .09 dollars per ounce or 9 cents
1. The answer will be less than one. We know this because a positive number that is multiplied by a negative number will always equal a negative number and therefore be less than one.
Step-by-step explanation:
x-8= -3x²+4x-1
3x²+x-4x=-1+8
3x²-3x=7
3x²-3x-7=0
x²-x-3.5=0
Delta = -1²-(4)(1)(-3.5)
+1+14=15
x1=-1- sqrt(15) /2(1) =2.43
x2=-1+sqrt(15)/2(1) =-1.93
I don't think it is right but i tried my best