Perform the indicated operation.- 
? 
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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If r(t) = 7i+t cos ?tj+4 sin ?tk, evaluate  Figure 3.png)
r(t)dt.
 multiple choice.png)
Mathematics
Write in logarithmic form.
= 3-2
A. log
3 = -2
B. log3 
= 3
C. log3 (-2) = 
D. log3 
= -2
Mathematics
Solve the problem.The BBQ committee always orders one pound of ribs for each person who signs up for the Homecoming BBQ, plus 19 extra pounds of ribs. If the committee ordered 120 pounds of ribs this year, find the number of people who signed up for the BBQ.
A. 120 people B. 19 people C. 139 people D. 101 people
Mathematics
Express the phrase as a ratio in lowest terms.21 miles to 12 miles
A. 
B. 
C. 
D. 
Mathematics