A rocket is launched from the ground. The quadratic function y=-16x2+56x models the rockets height in feet above the ground after x seconds. About how long is the rocket in the air

Therefore,

3.5 s long was the rocket in the air.

Step-by-step explanation:

Given:

A rocket is launched from the ground.

Height function for Rocket is given as

Where,

y = height in function with x as time in second

To Find:

How long is the rocket in the air, x =?

Solution:

Expression is given

So for time in air put y = 0 in above Expression

x cannot be negative

∴ x = 3.5 sec.

Therefore,

3.5 s long was the rocket in the air.

answer:   14

step-by-step explanation:          

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the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1