Answer the question.If we apply the quadratic formula and find that the value of b2 - 4ac equals zero, what can we conclude about the solutions?
A. The equation has no real number solutions.
B. The equation has exactly one irrational solution.
C. The equation has two different rational solutions.
D. The equation has exactly one rational solution.
Answer: D
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Provide an appropriate response. A construction company charges $2 per cubic foot plus an overhead charge of $30 to lay a concrete driveway. Write the function that represents the total cost of laying a driveway for any number of cubic feet.
A. C(x) =2x + 30 B. C(x) =2(x + 30) C. C(x) = 2 + 30x D. C(x) = 32x
Find the present value. Round to the nearest cent.To get $10,000 after 2 years at 9% compounded monthly
A. $10,938.07 B. $8358.31 C. $5000.00 D. $9142.38
Find the average rate of change for the function between the given values.f(x) = 
; from 4 to 7
A. 7
B. - 
C. 2
D. 
Use the composition cancellation equations to decide whether or not the functions are inverses of each other.f(x) = 
and g(x) =
A. Yes B. No