For the given matrix A, find -A.A = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the information to complete a circle graph. Note that the circle is divided into 100 equal sections.Main form of exercise for employees of one company:None:27%Walking:16%Running:7%Golf:12%Weight Training:23%Other:15%
A. 
B. 
C. 
D. 
Mathematics
Find projwv.
; 
A. - 
i - 
j
B. - 
i - 
j
C. - 
i + 
j
D. - 
i - 
j
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.75a4b - 147b3
A. 3b(5a - 7b)2 B. 3b(5a2 + 7b)(5a2 - 7b) C. 3b(5a + 7b)2 D. (15a + 21b)(5ab - 7b2)
Mathematics
Find the value of the determinant.
A. -28 B. 18 C. -24 D. -18
Mathematics