Solve the problem.Suppose that the systolic blood pressure of 23-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of 13 mmHg. What is the standard error in the mean for all samples of 168 of these 23-year-old women?
A. 1.187
B. 0.077
C. 1.774
D. 1.003
Answer: D
Mathematics
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Evaluate the line integral.
; C is the line segment path from (0, 0, 0) to (1, 0, 0) to (1, 2, 0) to (1, 2, 4)
A. 16 B. 15 C. 40 D. 39
Mathematics
Use Euler's method to approximate the solution. Also find the exact solution. Round your answers to four decimal places.Use Euler's method with ?x = 0.2 to approximate y(1) given that 
and y(0) = 2. Also find the exact value of y(1) given that 
A. y(1) ? 2.5263; the exact solution is y(1) = 2.5340 B. y(1) ? 2.6263; the exact solution is y(1) = 2.5340 C. y(1) ? 1.2250; the exact solution is y(1) = 1.2500 D. y(1) ? 2.4200; the exact solution is y(1) = 2.5340
Mathematics
Add. 11 + (-11)
A. 1 B. -22 C. 22 D. 0
Mathematics
Verify the identity.cos 
= -sin x
What will be an ideal response?
Mathematics