Solve the problem.In an economics study, three quantities m, p, and q have been found to be related by the equation m = p1/2 ? q1/2. Find m, if p = 16 and q = 25.
A. 100
B. 9
C. 20
D. 400
Answer: C
Mathematics
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Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 foot-candles, find the intensity on a screen 15 ft from the light.
A. 2 foot-candles
B. foot-candle
C. 1 foot-candles
D. foot-candle
Mathematics
Write the system of linear equations that the augmented matrix represents. Use the variables x, y, and z.
A.
4x | + 6y | + 3z | = -2 |
3x | + 5z | = 4 |
8x | + 7y | = 2 |
B.
4x | + 6y | + 3z | = -2 |
5x | + 5z | = -4 |
8x | + 7y | = 2 |
C.
4x | + 6y | + 3z | = -2 |
5x | + 5z | = 4 |
8x | + 7y | = 2 |
Mathematics
Graph the system of inequalities.x - 2y ? 2 x + y ? 0
A.
B.
C.
D.
Mathematics
Factor completely.x2 - 5x - 50
A. (x - 5)(x + 1) B. (x + 5)(x - 10) C. (x - 5)(x + 10) D. Prime
Mathematics