Use the division method to find the GCF of the pair of numbers. If the GCF is 1, write "relatively prime."84 and 42
A. 6
B. 21
C. 42
D. 14
Answer: C
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Solve the problem.The following table shows the rate of water flow (in gal/min) from a stream into a pond during a 30-minute period after a thunderstorm. Use the Trapezoidal Rule to estimate the total amount of water flowing into the pond during this period. Round your answer to the nearest gallon.
A. 6983 gal B. 7850 gal C. 6975 gal D. 6383 gal
Find the exact function value if it exists.tan -225°
A. 
B. 1
C. -1
D. 
Sketch a graph of the given equation. Use your graphing calculator to verify your graph.y = -4x + 3
A. 
B. 
C. 
D. 
Solve.The ratio of the weight of an object on Mars to the weight of an object on Earth is 0.4 to 1. How much will a 160-pound astronaut weigh on Mars?
A. 64 pounds B. 40 pounds C. 250 pounds D. 400 pounds