Solve the equation symbolically.21.9 + 4.4t = 2.98
A. -18.92
B. -14.3
C. 62.72
D. -4.3
Answer: D
Mathematics
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Rewrite the series using summation notation. Use 1 as the lower limit of summation.3(12) + 3(22) + . . . + 3(52)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A new exhibit is scheduled to open at the local museum. Museum officials expect that 9000 people will visit the exhibit in its first week, and that the number of visitors will drop by 10 people per week after the first week during the first 6 months. Find the total number of visitors expected in the exhibit's first 7 weeks.
A. 62,730 visitors B. 44,850 visitors C. 62,790 visitors D. 53,850 visitors
Mathematics
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Solve the equation first by clearing the fractions.
= 
+ 
A. 0
B. 27
C. 
D. - 
Mathematics