Find the axis of symmetry of the given function.f(x) = -x2 + 7x - 5
A. x = 
B. x = - 
C. x = 
D. x = 7
Answer: A
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The concentration C, in milligrams per deciliter, of a drug in the bloodstream t hours after injection is given by the following table. Use an exponential model for these data to determine the initial concentration of the drug in the bloodstream. Round your answer to two decimal places. t 1 2 3 4 C 33.93 30.20 26.88 23.92?
A. 33.98 milligrams per deciliter B. 38.12 milligrams per deciliter C. 38.18 milligrams per deciliter D. 33.93 milligrams per deciliter
Factor by grouping.30x2 - 18xy - 25xy + 15y2
A. (30x - 5y)(x - 3y) B. (6x + 5y)(5x - 3y) C. (6x - 5)(5x - 3) D. (6x - 5y)(5x - 3y)
Plot the ordered pairs on the rectangular coordinate system provided.A(-6, -6), B(-4, 4)
A. 
B. 
C. 
D. 
Write the equation in logarithmic form.
?
?
A. 
B. 
C. 
D. 
E. 