h = − 16t 2+ 40t − 25 a. 128 represents a. 40 represents b. Set h = 0 and solve for t. b. −25 represents c. Set h = 0 and solve for t

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

pretty sure 750 each month!

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c