Determine whether the equation has real number solutions.8 - 2a2 = -2a + 2
A. No real solutions
B. Real solutions
Answer: B
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Write the event as a set of outcomes.When we roll two dice, the total showing is eight.
A. {(1, 7), (2, 6), (3, 5), (4, 4), (5, 3), (6, 2), (7, 1)} B. {(2, 6), (3, 5), (4, 4), (5, 3), (6, 2)} C. {(2, 6), (3, 5), (5, 3), (6, 2)} D. {(2, 6), (3, 5), (4, 4)}
Solve. If the area of a square is represented by the expression 
find an expression for the length of each side.
A. (2x - 7)2 B. 2x + 7 C. (2x - 7)(2x + 7) D. 2x - 7
Solve the problem.A closed box with a square base has to have a volume of 11,000 cubic inches. Find a function for the surface area of the box.
A. S(x) = x2 + 
B. S(x) = 2x2 + 
C. S(x) = 2x2 + 
D. S(x) = 2x2 + 
First use front-end rounding to write an estimate of the answer, and then multiply fully to obtain an exact answer.EstimateProblem
?
A. Estimate: 280, exact: 276.9 B. Estimate: 281, exact: 277.9 C. Estimate: 28, exact: 27.69 D. Estimate: 279, exact: 275.9