Adiver jumped from a diving platform. the image shows her height above the water at several different times after leaving the platform. part a - find the equation of the quadratic function that describes the relationship between the diver's time and height. round to the nearest tenth. (equation has to be in standard form, y = ax^2+bx+c)

y = -5*x^2 + 10.2*x +24.9

Step-by-step explanation:

time (s)   height (ft)

0.25       27

0.5         29

1.5          29

2            25

2.75        15

To find the quadratic equation that correlates the data you can use either a calculator or a spreadsheet software, like MS Excel. Using Excel, first you have to input data; then select it and add a scatter plot; next, select one of the dots, left click, add regression line; finally, in the new menu, choose polynomial, degree = 2. In the picture attached, the result is shown.

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

correct answer is b. 27/8

step-by-step explanation: