Estimate the sum or difference by rounding each number to the nearest hundred.5466 + 7796 + 3168
A. 16,500
B. 16,000
C. 16,400
D. 18,000
Answer: A
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.
2
A. 
B. 
C. 
D. 
Evaluate the expression.61
A. 
B. 6
C. 1
D. -6
Find the probability.If 82% of scheduled flights actually take place and cancellations are independent events, what is the probability that 3 separate flights will take place? Round to the nearest hundredth.
A. 0.82 B. 0.55 C. 0.01 D. 0.67
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.x2 - 4x + 5 = 0
A. two nonreal complex solutions B. two irrational solutions C. one rational solution D. two rational solutions