Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. 7320
B. 7488
C. 7104
D. 6960
Answer: C
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Find the number.Six times the sum of a number and -174 is -12.
A. 172 B. -176 C. 27 D. -31
Factor completely.m6 - 64
A. (m + 2)(m - 2)( m2 - 2m + 4)2 B. (m - 2)2( m2 + 2m + 4)2 C. (m + 2)(m - 2)( m2 + 2m + 4)( m2 - 2m + 4) D. (m - 2)6
Solve the problem. It costs $350 to charter a bus for a ski trip. It also costs $400 per student for all other expenses including food, lodging, ski rental, and lift tickets. Let P(n) represent the per student cost (in dollars) to go on the trip if n students go on the ski trip. By finding an equation for P(n), determine how many students need to go on the trip so that the per person cost is no more than $420.
A. at most 18 students B. at least 17 students C. at most 17 students D. at least 18 students
Use algebraic and/or graphical methods to solve the inequality.
+ 
? - 
A. -4 ? x < -2 or 1 ? x < 2 B. x ? -4 or -2 < x ? 1 or x > 2 C. x ? -2 or 1 ? x < 2 D. -4 ? x < -2 or -2 < x ? 1