Determine algebraically whether the function is even, odd, or neither.f(x) = 4x3 - 9
A. even
B. odd
C. neither
Answer: C
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FInd the tangential and normal components of the acceleration.r(t) = (t - 7)i + (ln(sec t) - 1)j + 2k, -?/2 < t < ?/2
A. a = (cos t)T + (cos t)N B. a = (csc t)T + (sec t)N C. a = (sec t tan t)T + (sec t)N D. a = (sec2 t)T + (cos t)N
State whether the distribution appears to be (roughly) normal.
A. Normal B. Not normal
Solve the problem.When a particular circuit containing a resistor, an inductor, and a capacitor in series is connected to a battery, the current i (in amperes) is given by i = 25e-3t(e2.6t - e-2.6t) where t is the time (in seconds). Find the time at which the maximum current occurs.
A. 1.4 s B. 0.6 s C. 1.5 s D. 0.5 s
Find the median for the data given.Number of phone calls made each day: 8, 2, 26, 15, 23, 43, 40, 30
A. 23 calls B. 23.5 calls C. 26 calls D. 24.5 calls