Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find zw.
A. 15(cos 40° + i sin 40°)
B. 50(cos 40° + i sin 40°)
C. 15(cos 300° + i sin 300°)
D. 50(cos 300° + i sin 300°)
Answer: B
Mathematics
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A. 
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Solve the problem.It took 1930 J of work to stretch a spring from its natural length of 5 m to a length of 
. Find the spring's force constant.
A. 1447.5 N/m B. 482.5 N/m C. 965 N/m D. 3860 N/m
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Write the equation of a line connecting the given points in slope-intercept form.(-9, 6), (-2, 4)
A. y = x + 
B. y = - 
x + 
C. y = -x + 
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Which metric unit (km, m, cm, or mm) should you use to measure the following item?Metric wrench sizes
A. m B. cm C. mm D. km
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