Perform the operation or operations when possible.
- 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the double integral over the given region.
R: 0 ? x ? 1, 0 ? y ? 2
A. - 
B. 
C. 
D. 
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).r(t) = 3ti + 
j + 
k; -1? t ? 7
A. 40 B. 200 C. 150 D. 30
Mathematics
Solve the problem.The temperature, t, in degrees Fahrenheit, of water 
66 + 
m where m is the number of minutes since heating began. How long will it take for the temperature of the water to reach 70 degrees Fahrenheit?
A. 5 min B. 2 min C. 8 min D. 16 min
Mathematics
Given the interest formula, I = r ? p ? t, solve the exercise for the unknown value. If necessary, round to the nearest cent, percent, or year.p = $2200, I = $264, t = 3 yr, r =
A. 4% B. 7% C. 6% D. 5%
Mathematics