Use the given vectors to find the indicated expression.v = 4i - 3j + k, w = 3i - 4j - kFind (3v) × w.
A. 15i + 13j + 11k
B. 13i + 15j - 39k
C. 21i + 21j - 21k
D. -21i - 48j + 21k
Answer: C
Mathematics
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Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: none; minimum: 
at 
B. Maximum: none; minimum: 
at 
C. Maximum: none; minimum: 
at 
D. Maximum: none; minimum: 
at 
Mathematics
First estimate the answer. Then add or subtract to find the exact answer. Write answer as a mixed number. 
A. Estimate: -2; Exact: - 2
B. Estimate: -3; Exact: 8
C. Estimate: -3; Exact: - 2
D. Estimate: -2; Exact: - 2
Mathematics
Solve the given equation for the indicated variable. (Leave ± in the answer, if appropriate)v2 = 2as for v
A. v = ± 
B. v = ± 
C. v = 
D. v = 2a
Mathematics
Graph the inequality.y ? 3x + 1
A. 
B. 
C. 
D. 
Mathematics