What is the volume of the sphere in the diagram? with a diameter of 3
1 answer:
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Answer:
The volleyball travel high enough to clear the top of the net.
Step-by-step explanation:
The height of a volleyball, h, in feet, is given by h = −16t² + 11t + 5.5, where t is the number of seconds after it has been hit by a player.
Now, for h = 7.3 feet, we can write
7.3 = - 16t² + 11t + 5.5
⇒ 16t² - 11y + 1.8 = 0
Using the quadratic formula we get,
⇒
⇒ t = 0.27 or t = 0.42
Therefore, for the two real positive values of t the volleyball travel high enough to clear the top of the net. (Answer)
Answer:
29
Step-by-step explanation:
11 - 4
Take nine out - square root of 9 is 3
= 3 x 11 - 4
= 33 - 4
= 29
can not be simplified any more
Hope that helped!!! k