Question

Evaluate -4(a+b) - 10a/b when a=8 and b=5
a. -15
b. 36
c. -53
d. 625/8
e. -68

Answer 1

so what is the correct answer for 9 widgets?

Answer 2

B

Answer 3

so is that the answer

Answer 4

Robert why dont you explain how you got that answer so she could understand how you got the answer..

Answer 5

-68 is the correct ans.

Answer 6

Thanank you Sue101, but I understand now. :)
thanks Skittles.

Answer 7

-4(13)-10(8/3)
-52-16=-68

Answer 8

hey pkjh3105 answer this for me please


A rectangular display case houses a square pyramid. Both have the same square base measuring x inches on a side. The top of the case is 2 inches above the tip of the pyramid which has a height of h inches. Which expression represents the volume of the empty space inside the case?


Answer:
a. x^3 - x^2(h-2)
b. x^2-1/3x^2h
c. 1/3x2^h
d. 2/3x^2h
e. x^2(h+2) - 1/3x^2h

Answer 9

hey..hv already answrd it...its c...

Answer 10

that says it is incorrect it cant be c

Answer 11

In a coordinate system, points A(-2, 3) and B(6, -1) have a midpoint of X. What is the midpoint between A and X?

a. (0,0)
b. (2, 1)
c. (0,2)
d. (4,2)
e. (-1,1.5

Answer 12

How about this one:
Quick Computing Company produces calculators. They have found that the cost, c(x), of making x calculators is a quadratic function in terms of x.
$18-2 calc.
$66- 4 calc
$450- 10 calc.
what is the total cost of producing 8 calc?

Answer 13

b..

Answer 14

A trapezoid has a base of x and height of 3 units. If there is also a square with sides measuring x , what formula would be used to calculate the total area of both figures?

a. x^2 + 3x
b. 4x + x^3
c. x^2 + 9x
d. 9x
e. x^2

Answer 15

B

Answer 16

pkjha3105 If x= y-3 and y=z^2, what is x in terms of z?

Answer 17

a. z^-6
b. z^6
c. z^-2/3
d. z^5
e. z^3/2

Answer 18

robert