Considering the hang time equation, it is found that Player 1 jumped 0.68 feet higher than Player 2.
<h3>What is the hang time equation?</h3>
The hang-time of the ball for a player of jump h is given by:

The expression can be simplified as:

For a player that has a hang time of 0.9s, the jump is found as follows:




h = 3.24 feet.
For a player that has a hang time of 0.8s, the jump is found as follows:




h = 2.56 feet.
The difference is given by:
3.24 - 2.56 = 0.68 feet.
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The speed for which Brian iron the shirts is given by:

Rewriting we have:


Then, for each minute, we have the amount of ironed shirt is:

Answer:
At this rate, Brian plans 10/162 of his shirt.
Answer:
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Step-by-step explanation:
To determine x intercept, put y=0
<span>x^4 - 10x^2 + 9
= 0
</span>
<span>x^4 - 9x^2 - x^2 + 9
= 0
x^2(x^2 - 9) - 1(</span><span>x^2 - 9) = 0
(</span><span>x^2 - 9)(x^2-1) =0
x^2 - 9 = 0
⇒ x^2 = 9
⇒x = +3, -3
x^2 - 1 = 0
x^2 = 1
x = +1, -1
X intercepts are -3, -1, 1, 3
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