Use a common unit right triangle to find the value.sec 45°
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Choose the most reasonable unit of measure.Weight of a quarter 11 
(mg, g, kg)
A. g B. kg C. mg
Mathematics
A plane can fly 480 mph in still air. If it can fly 510 miles downwind in the same amount of time it can fly 450 miles upwind, find the velocity of the wind. ?
A. 60 mph B. 30 mph C. 40 mph D. 45 mph E. 53 mph
Mathematics
Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
- 
i
D. 
+ 
i
Mathematics
Solve the problem.Southwest Dry Cleaners believes that it will need new equipment in 9 years. The equipment will cost $26,000. What lump sum should be invested today at 4% compounded semiannually, to yield $26,000?
A. $21,726.77 B. $18,204.14 C. $21,835.40 D. $23,649.29
Mathematics