Make the indicated conversion within units of time.Convert 270 minutes to hours.
A. 4
hours
B. 
hours
C. 2700 hours
D. 16,200 hours
Answer: A
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Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = -14t + 8, s(0) = 11
A. s = - 7t2 + 8t + 11 B. s = 7t2 + 8t - 11 C. s = - 7t2 + 8t - 11 D. s = -14t2 + 8t + 11
Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 90% of the isotope left?
A. 527 yr B. 246 yr C. 1000 yr D. 500 yr
Use the square root property to solve the quadratic equation.
2 = 
A. 
B. 
C. 
D. 
Write the product as a sum or difference containing only sines or cosines.cos 
cos 
A. 
[cos(2?) + cos(3?)]
B. 
[cos(6?) - sin(4?)]
C. 
[cos(3?) - sin(2?)]
D. 
cos2(5?)