Tell whether the graph of the function opens up or down.P(x) = (x - 2)2 + 5
A. up
B. down
Answer: A
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If the recommended adult dosage for a drug is D (in mg), then to determine the appropriate dosage c for a child of age a, pharmacists use the equation c = 0.0417 D(a + 1). Suppose the dosage for an adult is 400 mg.
(a) Find the slope. What does it represent? (b) What is the dosage for a newborn?
Solve the equation.
- 
= 4
A. 120 B. -120 C. 60 D. -60
Solve the problem.An aircraft going from Atlanta to Savannah on a heading of 130° (from north) is travelling at a speed of 500 miles per hour. The wind is out of the north at a speed of 22 miles per hour. Find the actual speed and direction of the aircraft, rounded to the nearest whole number.
A. 697 miles per hour; 131° from north B. 486 miles per hour; 132° from north C. 493 miles per hour; 132° from north D. 514 miles per hour; 132° from north
Identify the probability statement as empirical or not.The probability of curing a certain type of cancer if detected early is 0.70.
A. Empirical B. Not empirical