Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 7, ? = 225°
A. v = 7
B. v = 7
C. v = 7
D. v = 7
Answer: B
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Solve for x.logx 81 = 4
A. 20 B. 324 C. 3 D. 85
Provide an appropriate response.Suppose that 4 items are to be selected from N items and that repetitions are not allowed. Which of the following is true?
A. There are 4 times as many permutations as combinations. B. There are 24 times as many permutations as combinations. C. There are 24 times as many combinations as permutations. D. There are 4 times as many combinations as permutations.
Name the highlighted angle using the three-letter form of identification.
A. ?R B. ?IRF or ?FRI C. ?JRF or ?FRJ D. ?BRI or ?IRB
Write an expression that illustrates the quantity described.The actual speed of a boat that goes 19.4 miles per hour against a current of 3 miles per hour
A. 16.4 miles per hour B. 19.4 miles per hour C. 3 miles per hour D. 22.4 miles per hour