The standard deviation for this set of numbers: 5ft, 5ft, 5ft, 5ft; is
A. 5ft
B. 0
C. 4
D. none
Answer: B
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Find the vector projv u.v = 3j, u = 4i + 3k
A. 
i + 
j
B. 
i + 
j + 
k
C. 
j
D. 0
Mathematics
Find the measures of the numbered angles in the rhombus PQRS.
Mathematics
Subtract and check.
A. 656 B. 874 C. 746 D. 756
Mathematics