Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.f(x) = 
4(x - 5)3
A. above the x-axis: 
below the x-axis: 
, (5, ?)
B. above the x-axis: (5, ?)
below the x-axis: 
, 
C. above the x-axis: 
, 
below the x-axis: (5, ?)
D. above the x-axis: 
, (5, ?)
below the x-axis: 
Answer: B
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Add the polynomials.(4y5 - 3y2) + (8y5 - 7y2)
A. 12y10 - 10y4 B. 2y7 C. 2y14 D. 12y5 - 10y2
Fill in the blank with one of the choices listed below. Some choices may be used more than once. 
To write fractions as decimals, divide the 
by the 
.
A. median; mean B. numerator; denominator C. mean; median D. denominator; numerator
Solve the system.A 20% iodine solution is mixed with a 50% iodine solution to produce 3 gallons of 
iodine solution. How many gallons of each solution were needed?
A. 1 gal of 20% solution, 2 gal of 50% solution B. 2 gal of 20% solution, 1 gal of 50% solution C. 1 gal of 20% solution, 3 gal of 50% solution D. 2 gal of 20% solution, 2 gal of 50% solution
Use a graphing calculator to solve the system of equations.
A. (1, 5) B. (2, 4), (1, 5) C. (2, 4) D. No solution