Simplify the numerical expression.
A. 9
B. 10
C. -9
D. 7
E. -5
Answer: A
Mathematics
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Find the length of the curve.x = 
t2, y = 
(2t + 1) 3/2, 0 ? t ? 1
A. 2
B. 3
C. 1
D. 
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Solve the system by elimination.x2 + y2 = 181x2 - y2 = -19
A. (-9, -10), (-10, -9) B. (9, 10), (10, 9), (-9, -10), (-10, -9) C. (9, -10), (9, 10) D. (9, 10), (-9, 10), (9, -10), (-9, -10)
Mathematics
Solve the problem.The dosage instructions on a prescription call for a patient to take 1
tablets of a 20-milligram medication four times a day for 14 days. How many tablets will the patient take in the 14-day period?
A. 84 tablets B. 56 tablets C. 21 tablets D. 315 tablets
Mathematics
Identify the equation as representing either a circle, a parabola, an ellipse, or a hyperbola.5x2 + 5y2 - 12y = 2
A. Parabola B. Hyperbola C. Ellipse D. Circle
Mathematics