Perform the conversion. Round to the nearest tenth when necessary.81.5 ft/sec to mi/hr
A. 131.2 mi/hr
B. 119.5 mi/hr
C. 55.6 mi/hr
D. 50.5 mi/hr
Answer: C
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Solve the problem.A card is drawn at random from a well-shuffled deck of 52 cards. What is the probability of drawing a face card or a spade?
A. 
B. 
C. 
D. 
Solve and graph.3x2 + 4x - 4 ? 0
A. x ? -2 or x ? 
B. x ? 
C. x ? -2
D. -2 ? x ? 
Nine milligrams of a dye (D) are injected into a vein leading to an individual's heart. The concentration of the dye in the aorta measured at 2-second intervals is shown in the accompanying table. Use Simpson's rule and the formula
to estimate the person's cardiac output. Round the result to the nearest tenth.
t024681012141618202224c(t)0026.29.66.64.63.220.80.50.20?
__________ L/min
Fill in the blank(s) with the appropriate word(s).
Graph. Label any intercepts and determine the slope of the line. If the slope is undefined, state this.y = -5
A. y-intercept: (-5, 0), m: undefined
B. y-intercept: (0, 0), m: - 
C. y-intercept: (0, 0), m: -5
D. y-intercept: (0, -5), m: 0