Write the vector v in terms of i and j whose magnitude 
and direction angle ? are given.
= 10, ? = 90°
A. v = 10j
B. v = 10i
C. v = 10i + 10j
D. v = 10
Answer: A
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cos(3x - cos 3x)
A. does not exist; no B. 0; yes C. does not exist; yes D. 0; no
Express the verbal representation for the function f graphically.Divide the input x by 2 and then add 2 to obtain the output y.
A. 
B. 
C. 
D. 
Provide an appropriate response.Simplify the expressions (2x)0 and (2x0) and explain how you arrived at your answers.
What will be an ideal response?
Solve the problem.The formula 
can be used to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks upon sudden braking on a dry asphalt road. If a car is involved in an accident and its skid marks measure 245 feet, at what estimated speed was the car traveling when it applied its brakes just prior to the accident?
A. 70 miles per hour B. 65 miles per hour C. 80 miles per hour D. 75 miles per hour