Solve the problem.Two factories blow their whistles at exactly the same time. If a man hears the two blasts exactly 
and 
after they are blown and the angle between his lines of sight to the two factories is 
how far apart are the factories? Give your result to the nearest meter. (Use the fact that sound travels at 344 m/sec.)
A. 1213 meters
B. 2738 meters
C. 4421 meters
D. 5056 meters
Answer: A
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Write as a decimal number rounded as indicated.0.
; Round to the nearest thousandth.
A. 0.949 B. 0.95 C. 0.950 D. 0.944
Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = 
x2 + 6x - 5
A. maximum at 
B. minimum at 
C. maximum at 
D. minimum at 
The augmented matrix is in row-echelon form and represents a system of linear equations. Solve the system using back-substitution.
A. {(38, -19, 5)} B. {(-17, 1, 5)} C. {(5, -19, -29)} D. ?
Solve the problem.How many five digit license plates can be formed allowing repetition of letters and numbers including 0?
A. 265 B. 36 ? 35 ? 34 C. 10 ? 26 D. 365 E. none of these