Solve the problem.Two plumbers make house calls. One charges $85 for a visit plus $40 per hour of work. The other charges $65 per visit plus $50 per hour of work. For how many hours of work do the two plumbers charge the same?
A. 2 hr
B. 1 hr
C. 1.5 hr
D. 2.5 hr
Answer: A
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Determine whether or not the function is one-to-one.f(x) = 5x3 - 4
A. Yes B. No
Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1). Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit?
A. H(x) = -2.679x2 - 26.607x + 168.571 B. H(x) = 2.679x2 + 26.607x + 168.571 C. H(x) = -2.679x2 + 26.607x - 168.571 D. H(x) = -2.679x2 + 26.607x + 168.571
Solve.The smallest angle of an isosceles triangle used in the wood frame of a boat measures 45°. The other two angles are larger. What are the measurements of the other two angles in this triangular part of the wood frame?
A. They each measure 135°. B. They each measure 22.5°. C. They each measure 33.75°. D. They each measure 67.5°.
Solve. Write the answer as a mixed number in simplest form.Daniel is 70
in. tall and his brother Tyler is 67
in. tall. How much taller is Daniel?
A. 2
in.
B. 3
in.
C. 3
in.
D. 2
in.