Solve the problem.A computer compiles a program in 0.000928 seconds. Write this time in scientific notation.
A. 9.28 × 10-6 sec
B. 9.28 × 10-4 sec
C. 9.28 × 103 sec
D. 9.28 × 10-5 sec
Answer: B
Mathematics
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Solve the problem.Two tracking stations are on the equator 146 miles apart. A weather balloon is located on a bearing of N 43°E from the western station and a bearing of N 23°E from the eastern station. How far, to the nearest mile, is the balloon from the western station? Round to the nearest mile.
A. 402 mi B. 390 mi C. 393 mi D. 381 mi
Mathematics
Verify the identity.
= cot 
What will be an ideal response?
Mathematics
Simplify. Assume that all variables represent positive real numbers.
- 
A. 0
B. - 
C. -4
D. -1
Mathematics
Complete the identity.sec4 ? + sec2 ? tan2 ? - 2 tan4 ? = ?
A. sec2 ? + 2 B. tan2 ? - 1 C. 3 sec2 ? - 2 D. 4 sec2 ?
Mathematics