Reduce the fraction by finding a common factor in the numerator and in the denominator and dividing by the common factor.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The function defined by 
gives the distance in feet that a car going approximately 
will skid in t seconds. Find the time it would take for the car to skid 
. Round to the nearest tenth.
A. 10.5 sec B. 9.3 sec C. 10.7 sec D. 10.3 sec
Determine the appropriate rotation formulas to use so that the new equation contains no xy-term.11x2 - 4xy + 7y2 - 8x + 8y = 0
A. x = 
x' - 
y' and y = 
x' + 
y'
B. x = -y' and y = x'
C. x = 
(x' - y') and y = 
(x' + y')
D. x = 
x' - 
y' and y = 
x' + 
y'
The marginal revenue from producing x units of a certain product is
(in dollars per unit).
Find the increase in revenue if the production level is raised from 1,100 units to units.
Select the correct answer.
a. $37,974,583
b. $51,367,000
c. $26,866,667
d. $17,765,250
e. $ 51,366,000
Translate the problem to a system of equations; then solve using the elimination method.The owner of Nuts2U Snack Shack mixes cashews worth $6.00 a pound with peanuts worth $2.00 a pound to get a half-pound, mixed-nut bag worth $1.70. How much of each kind of nut is included in the mixed bag?
A. Cashews: 0.18 lb; peanuts: 0.33 lb B. Cashews: 0.33 lb; peanuts: 0.18 lb C. Cashews: 0.07 lb; peanuts: 0.43 lb D. Cashews: 0.10 lb; peanuts: 0.40 lb