If possible, find the matrix product.Given A = [ 7 -2 -1]; and B = 
, find AB.
A. AB = 
B. AB = 
C. AB = 
D. AB = [-74 -16 -27]
Answer: D
Mathematics
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Solve for the indicated variable.Z = A(1 + x)1/2, for x
A. x = 
2
B. x = 
2 + 1
C. x = 
2 - 1
D. x = 
2
Mathematics
Find the mode(s) for the given sample data.The speeds (in mi/h) of the cars passing a certain checkpoint are measured by radar. The results are shown below.
A. 42.63 B. 40.9 C. 42.5, 44.5, 40.9 D. 42.5
Mathematics
Solve.Mike works on commission selling electronic equipment. The linear function 
describes his annual income I when his total sales for the year are s. What is Mike's annual salary if he sells $550,000 in electronic equipment for the year?
A. $28,300 B. $48,100 C. $23,044 D. $246,100
Mathematics
Find the exact value of the following expression without using a calculator.sec 
A. 
B. - 
C. -
D. -2
Mathematics