Solve the problem.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. 40 pounds
B. 64 pounds
C. 250 pounds
D. 400 pounds
Answer: B
Mathematics
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Simplify the power of i.
A. 1 B. -i C. i D. -1
Mathematics
Write the fraction as a decimal.
A. 0.94 B. 0.8 C. 0.68 D. 0.88
Mathematics
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Mathematics
Check the given subtraction. If the answer is incorrect, give the correct answer.
71
A. Incorrect; should be 81 B. Incorrect; should be 66 C. Correct D. Incorrect; should be 72
Mathematics