Simplify.
A. 12
B. 3
C. 3
D. 2
Answer: B
Mathematics
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Solve by using the quadratic formula.7x2 + 12x = - 1
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Starting with a tone having a frequency of 112 cycles per second, find the frequency of the tone that is four octaves higher.
A. 1792 cps B. 896 cps C. 12,544 cps D. 448 cps
Mathematics
Solve the problem.
The number sequence that corresponds to the figures above is 1, 5, 12, 22, . . . .These are the pentagonal numbers P1, P2, P3, P4, . . . .Use inductive reasoning to find a formula for the nth pentagonal number, Pn.
A. Pn = n(3n - 1)/2 B. Pn = 2n(n - 1) C. Pn = n(3n + 1)/2 D. Pn = 3n(n - 1)/2
Mathematics
Graph the numbers on the real number line.x ? 3
A. 
B. 
C. 
D. 
Mathematics