Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth. = 7,  = 14, ? = 70°Find 

A. 13.3
B. 15.7
C. -46.0
D. 17.7


Answer: D

Mathematics

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Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The manager of an electrical supply store measured the diameters of the rolls of wire in the inventory. The diameters of the rolls (in m) are listed below.0.665?0.565?0.422?0.426?0.395?0.407?0.321

A. 0.426 mm B. 1.5457 mm C. 0.1168 mm D. 1.4638 mm

Mathematics

Simplify the expression.167/4

A. 131
B.
C. 128
D. 16,384

Mathematics

Solve using the elimination method. Use a graphing calculator to check your answer.  x - 4y = -22 6x - 5y = 1

A. (5, 8) B. (-6, 8) C. (6, 7) D. No solution

Mathematics

Find the exact values of the three trigonometric functions sine, cosine, tangent of the real number t. ? ? ?

A. ?

?


B. ?

?


C.  

?


D. ?

?


E. ?

?


Mathematics