Use I = Prt for simple interest to find the indicated quantity.I = $750; r = 6%; t = 6 months. Find P.
A. $25,750
B. $24,250
C. $22.50
D. $25,000
Answer: D
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A. (x + 1)(x - 4)(x - 3) B. (x - 4)(x - 3) C. (x + 1)(x - 4) D. (x - 1)(x + 4)(x - 3)
Assume that the demand function for a certain commodity has the form
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where x is the quantity demanded, measured in units of a thousand, and p is the unit price in dollars. Suppose the quantity demanded is 4,000 (x = 4) when the unit price is $7.00 and 7,000 (x = 7) when the unit price is $4.00. Determine the demand equation.
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B. 
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Provide an appropriate response.True or false? The equation (7x - 9)2 = -25 has two real solutions. If false, give the correct number of real solutions.
A. True B. False; zero C. False; one D. False; three
Solve the system of linear equations and check any solution algebraically.
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A. ?
B. ?
C. ?
D. ?
E. ?