.674 as a percentage would be 67.4%

To find the percentage of a decimal, move the decimal two places to the right!

I hope this helps! Please thank my answer and mark my answer as the brainliest if it was the most helpful <3

4 0

2 years ago

20.

Alik [6]

Answer:

After 3 seconds

Step-by-step explanation:

Given

$h(t) = -16t^2 + 96t$

Required

Seconds to attain maximum height

The maximum of a quadratic function $y = ax^2 + bx + c$ is calculated using:

$x = -\frac{b}{2a}$

So, we have:

$t = -\frac{b}{2a}$

Where:

$a = -16$ and $b = 96$

So:

$t = -\frac{96}{2 * -16}$

$t = -\frac{96}{-32}$

Cancel out negatives

$t = \frac{96}{32}$

$t = 3$

5 0

2 years ago