Find the vector projv u.v = 2i - 2j - 4k, u = 5i - 12k
A. 
i - 
j - 
k
B. 
i - 
j - 
k
C. 
i - 
k
D. 
i - 
k
Answer: A
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Give the prime factorization of the number. Use exponents when possible.2937
A. 32 x 89 B. 112 x 89 C. 3 x 11 x 89 D. 33 x 89
Solve the problem.A projectile is fired with an initial velocity of 600 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (600 cos 45°)t, and y = (600 sin 45°)t - 16t2.
A. 31.3 seconds B. 26.5 seconds C. 23.1 seconds D. 34.6 seconds
Simplify the exponential expression.
3
A. 
B. 
C. 
D. 
Solve the problem.The table shows the number of new AIDS cases (in thousands) in the U.S. in five consecutive years.
Let x = 1 correspond to 1988 and let f(x) be the number of new AIDS cases (in thousands) in the U.S. in year x. Using the points 
and 
the following linear function is obtained to model the data: 
Compare the number of new AIDS
cases given by the model in 1990 with the actual number of new AIDS cases that year. How accurate is the model? What will be an ideal response?