Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 7
C. - 
D. -7
Answer: A
Mathematics
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Solve the problem.
The number sequence that corresponds to the figures above is 1, 6, 15, 28, . . . .These are the hexagonal numbers H1, H2, H3, H4, . . . .Use inductive reasoning to find a formula for the nth hexagonal number, Hn.
A. Hn = (n + 1)(2n - 1) B. Hn = n(2n - 1) C. Hn = 2n(n - 1) D. Hn = 5n - 4
Mathematics
Combine like terms.-1.6p - (-7.9p)
A. -9.5p B. 9.5p C. 6.3p D. -6.3p
Mathematics
Solve the problem.When sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is 
If Joey is known to be standing 32 feet from the base of the tree, how tall is the tree (to the nearest foot)?
A. 44 ft B. 40 ft C. 42 ft D. 46 ft
Mathematics
Multiply.6500 × 17
A. 110,499 B. 11,050 C. 11,049 D. 110,500
Mathematics