Graph the function.y = 
sin (x + ?)
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Suppose that the systolic blood pressure of 18-year-old women is normally distributed with a mean of 116 mmHg and a standard deviation of 13 mmHg. What is the standard error in the standard deviation for all samples of 169 of these 18-year-old women?
A. 0.979 B. 0.707 C. 0.853 D. 0.054
Solve.Each day the commuter train transports x passengers to or from the city at $1.75/passenger. The daily fixed cost for running the train is $1200. Write an equation that relates the daily profit, P, in dollars to the number of passengers each day. Then use the equation to find the daily profit when the train has 920 passengers in a day.
A. P = 1.75x + 1200; $2810 B. P = 1200 - 1.75x; $410 C. P = 1.75x; $1610 D. P = 1.75x - 1200; $410
Clear fractions then solve by substitution.
+ 
= 4
- 2y = 21
A. {(-6, 8)} B. {(6, -8)} C. {(x, y)| 7x + 5y = 48} D. ?
Fill in the digits for the given place values in the following whole number.4,231,784millions thousands
A. Millions 2, thousands 1 B. Millions 4, thousands 3 C. Millions 4, thousands 1 D. Millions 7, thousands 8