Solve.The sum of a number and 12 times its reciprocal is 8. Find the number.
A. 2
B. 6
C. 7
D. 2 or 6
Answer: D
Mathematics
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Determine the quadratic function whose graph is given.
A. f(x) = -x2 - 9 B. f(x) = x2 - 9 C. f(x) = x2 + 9 D. f(x) = -x2 + 9
Mathematics
Decide whether the figure shown is a polyhedron.
A. Polyhedron B. Not a polyhedron
Mathematics
Simplify the expression by combining like terms.9b - 5b + 4
A. 14b + 4 B. 8b C. 4b + 4 D. -4b + 4
Mathematics
Solve the problem.The number G of gears a machine can make varies directly as the time T it operates. If it can make 2867 gears in 5 hours, how many gears can it make in 7 hours?
A. 573.4 gears B. 4013.8 gears C. 0.0122 gears D. 2879 gears
Mathematics