Find a unit vector u in the direction of the given vector.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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In the illustration, quadrilaterals ABCD and WXYZ are similar rectangles. AB = 25, BC = 20, and XY = 20. Find YZ.
?
?
A. YZ is equal to 15. B. YZ is equal to 16. C. YZ is equal to 15.5. D. YZ is equal to 21. E. YZ is equal to 19.
Mathematics
Refer to this figure to answer the question. Assume 
and 
are parallel.
Are ?BED and ?EIJ supplementary?
A. No B. Yes
Mathematics
Divide. Write with positive exponents.
A. 5x6 - 10x4 + x2 B. 5x7 - 10x4 + x C. 5x6 - 10x3 + x D. -5
Mathematics
Find the missing coordinate to complete the ordered pair.y = -x + 9
(3, )
A. (3, 6) B. (3, -6) C. (3, -1) D. (3, 1)
Mathematics