Decide whether or not matrix A and matrix B are inverses.A = 
and B = 
A. Yes
B. No
Answer: A
Mathematics
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Find the indicated value.Find n if log n = 19, where n is the number of sodium ions in a typical mammalian muscle cell.
A. n = e19 B. n = 190 C. n = 1019 D. n = 10-19
Mathematics
Determine the absolute value of the complex number.z = 6i
A. 12 B. 6 C. -6 D. 0
Mathematics
Perform the indicated operation and simplify. 
+ 
A. 1
B. 
C. 
D. 
Mathematics
Find the product.6x7(-8x7 + 9x3 + 6)
A. -48x14 + 54x10 + 36x7 B. -48x7 + 54x3 + 36 C. -48x14 + 54x10 D. -48x14 + 9x3 + 6
Mathematics