Write a matrix to display the information.In the first heat of the 100-yd dash, Russell's time was 15.5 sec, Sergy's time was 15.8 sec, and Omar's time was 16.2 sec. In the second heat, Russell's time was 15.3 sec, Sergy's time was 15.4 sec, and Omar's time was 15.7 sec. Write a 3 × 1 matrix that gives the change in each of their times from the first heat to the second.
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B. 
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D. 
Answer: D
Mathematics
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Perform the operations indicated. Simplify the answer whenever possible.
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Mathematics
Solve.3x - 3y + 4z = 3 - y + 4z = 4 z = 3
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Mathematics
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.y = f(x + 3)
A. (2, 7) B. (5, 4) C. (-1, 4) D. (2, 1)
Mathematics
Solve the problem.Matthew has $1100 invested in the stock market. This amounts to 10% of his total savings. How much has Matthew saved?
A. $11,100 B. $11,000 C. $11,010 D. $110,000
Mathematics