Express the angular speed in radians per second.420 revolutions per second
A. 420? radians per second
B. 420 radians per second
C. 840 radians per second
D. 840? radians per second
Answer: D
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Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 = 16
A. (h, k) = (0, 0); r = 4 B. (h, k) = (0, 0); r = 16 C. (h, k) = (4, 4); r = 16 D. (h, k) = (4, 4); r = 4
Write the sentence as an equation. Let the variable x represent the number.Five times a number is equal to 30 decreased by the number.
A. 5 + x = 30 - x B. 5x = 30 + x C. 5x = x - 30 D. 5x = 30 - x
Write the percent as a fraction or mixed number in simplest form.25%
A. 
B. 2
C. 
D. 
Solve the problem.The cost in producing a shipment of widgets that you supply to various regional businesses consists of a setup expense of $20 plus $0.24 per widget. Let C be the total cost of producing a shipment, and let x represent the number of widgets in a shipment. Write in symbolic form an equation that will relate C and x. Generate five data points from this equation using equally incremented x values ranging from 100 to 500, and use this data to plot a graph. How many widgets can you include in a shipment if you don't want to spend more than $104.00 making them?
A. C = 0.24x; 20 widgets can be
included in the shipment.
B. C = 20 + 0.24x; 20 widgets can be
included in the shipment.
C. C = 20 + 0.24x; 300 widgets can be
included in the shipment.
D. C = 20 + 0.24x; 350 widgets can be
included in the shipment.