Solve.The world record for a marathon, set in 2003, is 2 hours 4 minutes 55 seconds. A marathon is 26.2 miles. What was the runner's average speed in ft/sec? Round to 1 decimal.
Fill in the blank(s) with the appropriate word(s).
18.5 ft per second
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Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in black on a light gray background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix which represents the entire picture becoming one shade lighter.
A. 
B. 
C. 
D. 
Find the real solutions of the equation.(x + 3)1/3 = -2
A. {1} B. {-11} C. {-9} D. no real solution
Graph the linear equation.x = -2
A. 
B. 
C. 
D. 
Graph the equation using a graphing utility. Use a graphing utility to approximate the intercepts rounded to two decimal places, if necessary. Use the TABLE feature to help establish the viewing window.y = -4x + 15
A. (0, -3.75), (15, 0) B. (0, 15), (-3.75, 0) C. (0, 15), (3.75, 0) D. (0, 3.75), (15, 0)