Solve.How many 3-letter codes can be formed with the letters P, Q, R, S, T without repetition?
A. 30
B. 60
C. 6
D. 180
Answer: B
Mathematics
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Use a calculator to approximate the number. (Round your answer to three decimal places.)
?
?
A. 5.000.000 B. 3.487 C. 1.487 D. 2.487 E. -2.487
Mathematics
Solve the equation using the zero product property.4(x - 2)(x - 5) = 0
A. {0, 2, 5} B. {4, 2, 5} C. {2, 5} D. {-5, -2}
Mathematics
Find the angle 
(in radians and degrees) between the lines. Round your answer to four decimal places for radians and round your answer to one decimal places for degree.
?
?
A. ?
B. 
C. 
D. 
E. 
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.-125
A. 5 cis 180°, 5 cis 0° B. 5 cis 60°, 5 cis 180°, 5 cis 300° C. 5 cis 120°, 5 cis 180°, 5 cis 300° D. 5 cis 30°, 5 cis 150°, 5 cis 270°
Mathematics