Solve the equation. Express radicals in simplest form.-7k2 - 15 = -267
A. {-6, 6}
B. {-12, 12}
C. {6}
D. {-133.5}
Answer: A
Mathematics
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Expand the expression using the Binomial Theorem.(2x + 1)5
A. 32x5 + 16x4 + 8x3 + 4x2 + 2x + 1 B. (4x2 + 4x + 1)5 C. 32x5 + 10x4 + 40x3 + 40x2 + 10x + 1 D. 32x5 + 80x4 + 80x3 + 40x2 + 10x + 1
Mathematics
Solve the problem.Suppose a charitable organization decides to raise money by raffling a trip worth $500. If 3000 tickets are sold at $1.00 each, find the expected value of winning for a person who buys 1 ticket.
A. -$.81 B. -$.83 C. -$1.00 D. -$.85
Mathematics
Evaluate the expression without using a calculator.-54
A. -625 B. 625 C. -20 D. 20
Mathematics
Add or subtract. Simplify your answer to lowest terms.
- 
A. 
B. 5x - 3y
C. 3y - 5x
D. 
Mathematics