a truck is dispatched for delivery at 8:30 am to a customer 50 miles away. assume that the average speed of the truck is 25 miles per hour, and it takes 30 minutes to unload the truck. at what time can you expect the truck back?

what i would say the best answer is a. 40.5

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct