Express the number in terms of i.-
A. -26i
B.
C. i
D. - i
Answer: D
Mathematics
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Evaluate the integral.
A. - + C
B. + C
C. + C
D. - + C
Mathematics
Write the sum without sigma notation and evaluate it.
A. -cos 2? + cos 4? - cos 6? = -1 B. cos 2? - cos 4? + cos 6? = - 1 C. cos 2? + cos 6? = 2 D. cos 2? - cos 4? + cos 6? = 1
Mathematics
Combine the numbers.-10 + 12 - 15
A. -7 B. -13 C. -37 D. 17
Mathematics
A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the approximate number of bulbs that can be expected to last the specified period of time.Between 500 hours and 675 hours
A. 2300 B. 4800 C. 2256 D. 4700
Mathematics