?Use any method to solve the system of linear equations, find (x,y).
?
?
A. ?(-10, -5)
B. (10, -5)
C. ?(3, -5)
D. ??(-5, 10)
E. ???(-5, -10)
Answer: B
Mathematics
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Solve the problem.Suppose that y is inversely proportional to x and that y = 24.5 when x = 7. Find the constant of proportionality k. Then, find y when x = 49.
A. k = 171.5; y = 3.5 B. k = 156.8; y = 3.2 C. k = 186.2; y = 3.8 D. k = 3.5; y = 171.5
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.One-third of a number added to the difference of the number and 7
A. 
x + (x - 7)
B. 
x + (7 - x)
C. 
D. 
Mathematics
Divide.(6r3 - 29r2 - 33r - 54) ÷ (r - 6)
A. r2 + 9r + 7
B. 6r2 + 7r + 
C. 6r2 + 7r + 9
D. 6r2 - 7r - 9
Mathematics
Using the horizontal-line test, determine whether the function is one-to-one.f(x) = 
A. Yes B. No
Mathematics