Solve the problem.The sum of the squares of two numbers is 17. The sum of the two numbers is -3. Find the two numbers.
A. -4 and 1
B. 1 and 4; or -4 and -1
C. -1 and 4
D. -4 and 1; or -1 and 4
Answer: A
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Use implicit differentiation to find dy/dx.xy + x = 2
A. 
B. 
C. - 
D. - 
Graph the hyperbola.x2 - y2 = 4
A. 
B. 
C. 
D. 
The number of voters in a certain district of a city is expected to grow at the rate of
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people per year t years from now. If the number of voters at present is 30,000, how many voters will be in the district 5 years from now?
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A. 29,700 people B. 27,953 people C. 36,781 people D. 31,448 people E. 34,942 people
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500