Add or subtract as indicated. Write the answer in lowest terms.8 + 20

A. 27
B. 28
C. 29
D. 8


Answer: B

Mathematics

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Provide an appropriate response.Show that if a and b are not both 0, the graph of the equation  is a circle. Find the radius and the rectangular coordinates of the center of this circle.

What will be an ideal response?

Mathematics

Find the domain and the vertical asymptote of the function.f(x) = log (x - 9)

A. Domain : (-9, ?); vertical asymptote: x = -9 B. Domain (1, ?); vertical asymptote: x = 1 C. Domain (0, ?); vertical asymptote: x = 0 D. Domain (9, ?); vertical asymptote: x = 9

Mathematics

Solve the problem.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.

A. 56 B. 65 C. 67 D. 76

Mathematics

Add and simplify. + 

A.
B.
C.
D.

Mathematics