Of the given values of x, identify those at which the function is continuous.f(x) = 
; x = -7, 0, 7
A. 7, -7
B. -7, 0
C. -7, 0, 7
D. 0, 7
Answer: B
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Use an integer to express the number.Mr. Voss decreased his speed by 13 miles per hour.
A. 13 B. -13
Solve the problem.The rectangular court shown in the figure requires 324 feet of fence. Once side of the court is against a building and needs no fence. What dimensions give the largest area?
A. 162 ft by 162 ft B. 40.5 ft by 81 ft C. 81 ft by 162 ft D. 81 ft by 81 ft
Factor.3y3 + 30y2 + 75y
A. y(y - 15)2 B. 3y(y - 5)2 C. 3y(y + 5)2 D. y(y + 15)2
The old lady jumping rope in the cartoon at the figure below is counting one at a time. Assume that she jumps the rope 50 times per minute and that she jumps 7 hours a day, 4 days a week, 30 weeks a year. Estimate the length of time necessary for her to jump the rope the number of times indicated in the cartoon.
?
?
A. 21,748.6 centuries B. 21,750.1 centuries C. 21,747.1 centuries D. 21,748.1 centuries E. 21,748.2 centuries