Perform the matrix multiplication.Let A = 
and B = 
. Find AB.
A. 
B. 
C. 
D. 
Answer: A
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Find the equation of the line described, and express your answer in the specified form.Perpendicular to the line y = 4x + 3; passes through the point (-1, -2); slope-intercept form
A. y = 4x - 
B. y = 
x - 
C. y = -4x - 
D. y = - 
x - 
Provide an appropriate response.When the numerator is the same as the denominator, for example 
, the fraction is called a(n) 
fraction.
A. whole B. proper C. uncommon D. improper
Convert the percent to a decimal. 25.4%
A. 0.144 B. 0.254 C. 0.0254 D. 2.54
Suppose that a retailer sells f(p, a) units of an item, where p is the price per unit of the item and a is the amount of money spent on advertising that item. Which of the following indicates that as the amount spent on advertising is decreased, demand for the item also decreases?
A. 
(50, 25) = -1
B. 
(50, 25) = 10
C. 
(50, -1) = -5
D. 
(50, 75) = -10