Solve the equation.log9(x - 7) + log9(x - 7) = 1

A. {-10, 10}
B. {-}
C. {}
D. {10}


Answer: D

Mathematics

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Find the polynomial of lowest degree that will approximate F(x) throughout the given interval with an error of magnitude less than than 10-3.F(x) = , [0, 0.5]

A. x +  + 
B. x -  + 
C. x -  + 
D. x -  + 

Mathematics

Solve the problem.Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were $14,000 in 1982 and $68,000 in 1987. Let  represent 1982. Find the equation giving yearly sales .

A. S(x) = 10,800x + 68,000 B. S(x) = 10,800x + 14,000 C. S(x) = 54,000x + 14,000 D. S(x) = 54,000x + 68,000

Mathematics

Simplify the expression. First use the distributive property to remove any parentheses.6(x + 2) + 9x - 7

A. 15x + 19 B. 3x + 5 C. 15x + 5 D. 15x - 19

Mathematics

Write the equation of the circle in standard form.  

A.
B.
C.
D.
E.

Mathematics