Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two cars leave town at the same time going in the same direction. One travels at 
and the other travels as 60 mph. In how many hours will they 
apart?
A. 20 hr
B. 1 hr
C. 4 hr
D. 40 hr
Answer: C
Mathematics
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Provide an appropriate response.It can be shown that the inequalities 1 - 
< 
< 1 hold for all values of x close to zero. What, if anything, does this tell you about 
Explain.
What will be an ideal response?
Mathematics
Provide an appropriate response.Graph the expression sec2 x - sec2 x sin2 x on your calculator. Determine what constant or single circular function is equivalent to the given expression.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Perform the indicated operation.u = 6i + j, v = -10i - 8j, w = i - 4j; Find v - (u - w).
A. -17i - 5j B. -3i - 11j C. -15i - 13j D. -15i + 13j
Mathematics
Graph the ellipse and label the center.
+ 
= 1
A. C(3, 9)
B. C(10, 11)
C. C(-3, -9)
D. C(-10, -11)
Mathematics