Give the center and radius of the circle.(x - 3)2 + (y + 6)2 = 121
A. center: (3, -6); r = 11
B. center: (3, -6); r = 121
C. center: (- 3, 6); r = 121
D. center: (- 3, 6); r = 11
Answer: A
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Verify the formula for n = 1, 2, 3, and 4. Is it correct?
?
?
A. no B. yes
Multiply or divide as indicated.
÷ 
A. x + 6
B. 
C. 
D. 
Solve. Round to the nearest tenth when necessary.The zoo has hired a landscape architect to design the triangular lobby of the children's petting zoo. In his scale drawing, the longest side of the lobby is 14 cm. The shortest side of the lobby is 3 cm. The longest side of the actual lobby will be 45 m. How long will the shortest side of the actual lobby be?
A. 0.1 m B. 2.1 m C. 9.6 m D. 210 m
For the scatterplot below, determine which, if any, of the following functions might be used as a model for the data. Quadratic: f(x) = ax2 + bx + c Polynomial, not quadratic Exponential, f(x) = aekx, k > 0 Exponential, f(x) = ae-kx, k > 0 Logarithmic, f(x) = a + b ln x Logistic, f(x) = 
Year
A. Logistic, f(x) = 
B. Logarithmic, f(x) = a + b ln x
C. Exponential, f(x) = ae-kx, k > 0
D. Quadratic, f(x) = ax2 + bx + c