Solve the problem.Sybil is having her yard landscaped. She obtained an estimate from two landscaping companies. Company A gave an estimate of $180 for materials and equipment rental plus $60 per hour for labor. Company B gave an estimate of $230 for materials and equipment rental plus $50 per hour for labor. We can represent this situation with the system of linear equationsc = 180 + 60xCompany Ac = 230 + 50xCompany Bwhere c is the total cost and x is the number of hours of labor. Graph the system. What is the x-coordinate of the intersection point of the graphs? Describe what this x-coordinate means in practical terms.
A. 5; for 5 hours of labor, both companies charge the same.
B. 8; for 8 hours of labor, both companies charge the same.
C. 4; for 4 hours of labor, both companies charge the same.
D. 4; there is a number of hours of labor, for which both companies charge $400.
Answer: A
Mathematics
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A. 5 B. 2, 5 C. 3 D. 2
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Write the first five terms of the arithmetic sequence.a1 = - 
, d = - 
A. - 
, - 
, 1, 
, 
B. - 
, - 2, - 
, - 
, - 
C. - 
, - 
, 
, 
, 
D. - 
, - 4, - 
, - 
, - 9
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= 
What will be an ideal response?
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Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 3x + 2
B. none of these
C. 
D. (3x + 2)2
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