Clear fractions then solve by substitution.
x + 
y = -1
x - 
y = 
A. {(0, -3)}
B. ?
C. {(-1, -3)}
D. {(1, -4)}
Answer: D
Mathematics
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Solve.A car travels 147 miles in 2 hours and 30 minutes. What is its average speed in mph and km/hr? (Round to the nearest tenth.)
Fill in the blank(s) with the appropriate word(s).
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For the pair of functions, find the indicated domain.f(x) = x2 - 49, g(x) = 2x + 3Find the domain of g ? f.
A. (-?, ?)
B. 
C. (-7, 7)
D. 
? 
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Perform the indicated operations.(4 + 7)[8 + (8 + 4)]
A. 220 B. 100 C. 27 D. 31
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Add.- 16.51 + (- 3.4)
A. -13.11 B. -19.91 C. 13.11 D. -19.55
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