30. The equation below represents the quadratic function where a and b are constants. If the function is graphed in the coordinate plane, its vertex is at the point (2.-54). What is the value of a + b?
f(x) = a(x + b)(x-8)
A 4
B. 3.3
C. 6
D. 73

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

(23*2)-12=x     x=34

step-by-step explanation: