Compute r''(t).r(t) = (cos 3t)i + (2 sin t)j
A. r''(t) = (-3 cos 3t)i + (2 sin t)j
B. r''(t) = (-9 cos 3t)i + (-4 sin t)j
C. r''(t) = (9 cos 3t)i + (-2 sin t)j
D. r''(t) = (-9 cos 3t)i + (-2 sin t)j
Answer: D
You might also like to view...
Convert the measurement to the units specified. Round your answer to the nearest tenth.28 feet to meters
A. 8.5 meters B. 10.6 meters C. 91.8 meters D. 25.6 meters
Use the following advice from most financial advisors to solve the problem. ? Spend no more than 28% of your gross monthly income for your mortgage payment. ? Spend no more than 36% of your gross monthly income for your total monthly debt.Round all calculations to the nearest dollar, if necessary.Suppose that your gross annual income is $60,000.(a) What is the maximum amount you should spend each month on a mortgage payment?(b) What is the maximum amount you should spend each month for total credit obligations?(c) If your monthly mortgage payment is 75% of the maximum amount you can afford, what is the maximum amount you should spend each month for all other debt?
A. (a) $1400; (b) $1800; (c) $1050 B. (a) $16,800; (b) $21,600; (c) $9000 C. (a) $1400; (b) $1800; (c) $750 D. (a) $1400; (b) $1800; (c) $50
Find 
, where 
and R is the indicated domain. (Remember that you often have a choice as to the order of integration.)
?
?
A. 13
B. 2,197
C. ?
D. 113
E. 
Solve.The speed limit is 60 miles per hour. Convert this to kilometers per hour. Round answer to the nearest hundredth, if necessary.
A. 37.2 km per hr B. 96.6 km per hr C. 18 km per hr D. 152.4 km per hr