Solve the problem.A polygon with n sides has D diagonals, where D is given by the function D(n) = 
. Find the number of sides n if 77 ? D ? 170.
A. The number of sides is between 13 and 21, inclusive.
B. The number of sides is between 14 and 20, inclusive.
C. The number of sides is between 12 and 21, inclusive.
D. The number of sides is between 15 and 20, inclusive.
Answer: B
Mathematics
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Factor out the greatest common factor.48x7 + 6x4 - 42x2
A. x2(48x5 + 6x2 - 42) B. 6(8x7 + x4 - 7x2) C. -x2(-48x5 + 6x2 + 42) D. 6x2(8x5 + x2 - 7)
Mathematics
Graph the solution set of the system of inequalities.x + 2y > -6y ? -3
A. 
B. 
C. 
D. 
Mathematics
The sequence is defined recursively. Write the first four terms.a1 = 2, a2 = 5 and an = an-2 - 3an-1 for n ? 3
A. 2, 5, -1, -16 B. 2, 5, 17, -46 C. 2, 5, -13, 44 D. 2, 5, 1, 2
Mathematics
Evaluate.
dx
A. 10 - 2b
B. 5b2 - b3
C. 5b2 - 
b3
D. 10b2 - 
b3
Mathematics