Solve the system of equations by either the addition method or the substitution method.
A. (-4, -1)
B. no solution
C. infinite number of solutions
D. (-1, -4)
Answer: D
Mathematics
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Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 5 cos 3?
A. 
?
B. 
?
C. 
?
D. 
?
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A doctor orders tetracycline elixir qid for a child weighing 60 lb at a dosage of 8 mg/kg/day in equally divided doses. How many mg would one dose contain?
A. 54 mg/dose B. 108 mg/dose C. 216 mg/dose D. 72 mg/dose
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Write the number in decimal form.9.74 × 10-4
A. 0.000974 B. -974,000 C. 0.00974 D. 0.0000974
Mathematics
Find Y in the circuit below if R = 2.7 ê and C = 330 pF when f = 50 KHz.
a. Y = 270 æS + j580 æS b. Y = 580 æS + j270 æS c. Y = 370 æS + j103.7 æS d. Y = 270 æS + j330 æS e. Y = 104 æS + j270 æS
Mathematics