Graph the piecewise linear function.f(x) = 
A. 
B. 
C. 
D. 
Answer: A
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Find the formula and limit as requested.For the function f(x) = 4x2+ 4, find a formula for the upper sum obtained by dividing the interval [0, 3] into n equal subintervals. Then take the limit as n?? to calculate the area under the curve over [0, 3].
A. 12 + 
; Area = 48
B. 12 + 
; Area = 48
C. 12 + 
; Area = 12
D. 12 + 
; Area = 36
Solve the problem.A plumber charges a fixed rate plus an hourly rate to do house calls. The ordered pair (2, 65) indicates total charges of $65 for a job taking 
and the ordered pair 
indicates total charges of $170 for a job taking 9 hours.a) Write a linear equation giving the total charges, y, in terms of the number of hours x.b) Use the equation found in part a to find how much it costs for 4 hours.c) How many hours would result in a total charge of $125?
A. y = 15x + 35; $95; 6 hours B. y = 15x; $60; 6 hours C. y = 15x + 35; $95; 8 hours D. y = 15x + 35; $60; 6 hours
Provide an appropriate response.Tina was asked to solve the following problem: "The product of two consecutive numbers is 90. Find the numbers." Tina's solution is given below. Do you agree with her conclusion? If not, why not? x(x + 1) = 90x2 + x = 90x2 + x - 90 = 0(x + 10)(x - 9) = 0x = -10 or x = 9The pair of numbers is 9 and 10
What will be an ideal response?
Determine whether the number is rational or irrational. Find a decimal approximation to the nearest thousandth.
A. Irrational, 51.000 B. Rational, 51.000 C. Irrational, 10.100 D. Rational, 10.100