Stacia was 5 feet tall on her 12th birthday and 5 feet and 3 inches tall on her 13th birthday. What was the percent increase in Stacia’s height from her 12th birthday to her 13th birthday?

6%

Step-by-step explanation:

So, lets first go over what we know:

S(Stacia) = 5(feet) when she was 12

S = 5.3 when she was 13

To find the answer, we must find the percentage of change from 5 to 5.3.

The equation we can use to find the percentage of increase looks like:

Put this in your calculator, or do this out.

When your done, you should get 1.06

Now, to put this in percentage form, we must multiply by 100:

1.06 · 100 = 106

Stacia was already 100% of her height, so the increase was 6%.

Hope this helps! :D

5%

Step-by-step explanation:

Initial height = 5 feet

Increased height on 13th birthday = 3 inches

5 feet = 12 inches per feet = 60 inches

60 + 3 = 63 inches

4.8 rounded to 5%

= 5% increase

Hope this helps.

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

x

step-by-step explanation: