Subtract.-13.2 - (-7.7)
A. 5.5
B. 20.9
C. -5.5
D. -20.9
Answer: C
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (6t sin t + 6cos t)i + (6t cos t - 6 sin t)j - 6k
A. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j B. T = (cos t)i + (sin t)j; N = (-sin t)i + (cos t)j C. T = (-cos t)i - (sin t)j; N = (sin t)i + (cos t)j D. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j
Solve the problem.James doubled his profit compared with that of last year. Last year he doubled his profit from the previous year. If his profit this year was $12,000, then what was his profit last year and the year before that?
A. $9000; $3000 B. $3000; $1500 C. $9000; $6000 D. $6000; $3000
Graph the polynomial function. f(x) = x4 - 4x2
A. 
B. 
C. 
D. 
Reconcile the bank statement with the check register balance. Find the current balance.
A. $5669.72 B. $5667.10 C. $5668.41 D. $6442.64