Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 1.23 × 10-2
B. 
C. 4.12 × 10-3
D. 1.37 × 10-3
Mathematics
Find the indicated cardinal number.Find n(E), given that n(C × E) = 18 and C = {4, 5, 6}.
A. 3 B. 6 C. 54 D. 9
Mathematics
If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (7 cos t)i + (6 sin t)j
A. a = (-7 cos t)i + (-6 sin t)j B. a = (-7 sin t)i + (-6 cos t)j C. a = (7 sin t)i + (6 cos t)j D. a = (7 cos t)i + (6 sin t)j
Mathematics
Find the limit and determine if the function is continuous at the point being approached.
tan 
A. -1; no B. -1; yes C. Does not exist; no D. 0; yes
Mathematics