Decide whether the pair of functions graphed are inverses.
A. No
B. Yes
Answer: B
Mathematics
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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) = (cos 5t)i + (4 sin t)j
A. a = (-5 cos 5t)i + (4 sin t)j B. a = (-25 cos 5t)i + (-4 sin t)j C. a = (-25 cos 5t)i + (-16 sin t)j D. a = (25 cos 5t)i + (-4 sin t)j
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. 
B. 
C. Not a real number
D. 
Mathematics
Find y if the point (8, y) is on the terminal side of ? and 
.
?
A. y = 4 B. y = ±6 C. y = ±10 D. y = 24 E. y = ±15
Mathematics
Solve the problem.The half-life of carbon-14 is 5700 years. Find the age of a sample in which 8% of the radioactive nuclei originally present have decayed.
Fill in the blank(s) with the appropriate word(s).
Mathematics