Use an inverse matrix to solve (if possible) the system of linear equations.
?
?
A. (-24, -31)
B. (-23, -32)
C. (-22, -32)
D. (-24, -32)
E. (-23, -30)
Answer: D
Mathematics
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.a = 9, d = 0.3
A. an = 9n + 0.3; a20 = 180.3 B. an = 9n - 8.7; a20 = 171.3 C. an = 0.3n + 8.7; a20 = 14.7 D. an = 0.3n + 9; a20 = 15
Mathematics
Use mathematical induction to prove the following.
= 
What will be an ideal response?
Mathematics
Make a table to find the limit.
A. - 
B. 0
C. 1
D. does not exist
Mathematics
Solve the problem.Trader Tower stands at 1550 feet high. Exchange Emporium is 820 feet tall. How much taller is Trader Tower than Exchange Emporium?
A. 2370 feet B. -2370 feet C. 730 feet D. -730 feet
Mathematics