Find the indicated term of the arithmetic sequence.11, 2 , -7, -16, . . . ; a20
A. -160
B. 169
C. -169
D. 160
Answer: A
Mathematics
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Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
C. 
D. 
Mathematics
Find the difference quotient, 
for the function given below.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Factor completely.y2 - 81
A. (y - 9)(y - 9) B. (y + 81)(y - 81) C. (y2 + 9)(y2 - 9) D. (y + 9)(y - 9)
Mathematics
Solve the problem.Katrina sells the mussels she harvests to a local restaurant for 15 cents a pound. She can usually estimate how much her harvest weighs to within 
She estimates that she has 55 pounds of mussels. How much might she get paid for her harvest? Round your answer to the nearest cent, if necessary.
A. between $821.25 and $828.75 B. between $8.11 and $8.39 C. between $8.21 and $8.29 D. between $811.25 and $838.75
Mathematics