Perform the matrix multiplication.
A. 
B. Not defined
C. 
D. 
Answer: B
Mathematics
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Evaluate the expression for the given replacement values. Write the answer in simplest form.x - y for x = 
, y = 
A. 
B. 
C. 
D. 
Mathematics
Find the x- and y-intercepts, and graph the equation.y = 7
A. None; (0, 7)
B. None; (0, 7)
C. (7, 0); none
D. (7, 0); none
Mathematics
Collect like terms.3.2a + 7.9b - 2.1a - 3.8b
A. 1.1a + 4.1b B. 1.1a + 11.7b C. 5.3a + 11.7b D. -1.1a + 4.1b
Mathematics
Carry out the operations with decimal forms.
?
?
A. 1.637 B. - 1.637 C. 6.013 D. - 6.013 E. 2.637
Mathematics