Solve the equation by completing the square.x2 + 3x = 40
A. {-5, 8}
B. {-8, -5}
C. {8, 5}
D. {-8, 5}
Answer: D
Mathematics
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Evaluate the expression.
A. 0 B. 362,880 C. 1 D. 9
Mathematics
Solve the problem.Within a group of n people, the number of possible handshakes, N, is given by N = 
(n2 - n). How many handshakes are possible at a meeting if 30 people are present?
A. 420 B. 870 C. 435 D. 465
Mathematics
Solve the problem.
?
Give the number of possible outcomes for spinning the first spinner 5 times and the second spinner 9 times.
A. 540 B. 47 C. 20,155,392 D. 20,707
Mathematics
Simplify and reduce to lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics