Given matrix A, find the indicated cofactor.Find A42.A =
A. -3
B. -6
C. 6
D. 0
Answer: B
Mathematics
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Find a polar equation for the circle.x2 + 
x + y2 = 0
A. r = 
sin ?
B. r = - 
sin ?
C. r = 
cos ?
D. r = - 
cos ?
Mathematics
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-6 + 3
A. 9 B. -3 C. 3 D. -9
Mathematics
Rewrite as a terminating decimal.
A. 0.74 B. 0.791 C. 0.771 D. 0.78
Mathematics
Determine whether the sequence is arithmetic. If so, find the common difference.
5, 25, 125, 625, 3125 a. –5 b. 5 c. 5n – 5n – 1 d. Sequence not arithmetic
Mathematics