Question Details

1. simplify the following rational expression
x2-25x2-3-10
a. x+5x+2
b. 35x
c. 25x-10
d.x2-25x2-3x-10
2. select the product
3/2x-1 - 5/2x-1
a. -15/(2x-1)2
b. -2/2x-1
c.-15/2x-1
d. 0
3. select the quotient
a. ((x+4)/(z-1))/((x2+x)(x-1))
b. (x+4)/(x-1)2
c. 1/x
d. x2+4x+4/2x
4. select the difference
a. (3/2x-1)
b. (-2)/2x-1
c.- 15/2x-1
d. 0
5. select the sum
(x/3x-6) +1/8
a. x/24(x-2)
b.1+x/3x+2
c. x/(24x-48)
d. 11x-6/24(x-2)
6. select the value of x that is solution for this equation
(6/x)=(7/x+3)
a. -13
b.18
c.6
d.9
7. an object 7.5 feet tall casts a shadow that is 22.5 feet long. How in feet would the shadow be for an object which is 19.8 feet tall ?
a. 4.8 feet
b. 6.6 feet
c. 34.8 feet
d. 59.4 feet

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