The value, y, in dollars of a limited edition baseball card after x years can be represented by the function y=5000(1.15)x. How much is the baseball card worth after 12 years to the nearest dollar?

$60,000
$5,750
$69,000
$26,751

Mrs. Galicia is watching the bacterial population grow at a rate of 40% per year. The bacteria population originally started at 30. After 8 years how many bacteria will be present?

336
443
126
42

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

answer: howdy

step-by-step explanation:

answer: 88

step-by-step explanation:

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1