A projectile is thrown upward so that its distance above the ground after t seconds is h(t) = -16t2 + 418t. After how many seconds does it reach its maximum height? Round to the nearest second. ** HINT: GRAPH THE FUNCTION WITH YOUR CALCULATOR. Set X min = 0 and Y min =0 and then adjust the Xmax and the Ymax until you can see the top of the parabola. The "x" coordinate at the vertex will give you the answer to this problem. 13 sec O 28.5 sec O 9 sec O 38 sec

Q: 4. 10p-p-2

A: The given expression is : 10p2-p-2 To factorize the given expression.

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Q: figured out part a. How do I do part b and how do I put it in my calculator?

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A: Solution: Let U = { 1, 2, 3, 4, 5, 6, 7} A={1, 2, 3, 4) B={ 1, 2, 5, 6} and C= { 3, 5, 7}

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A: Note : The formula used is wrong . See the below picture for detailed solution.

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Q: Not sure how to find without calculator

A: To find the value without using calculator

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Q: How could you plug the equation above into a calculator and get the same answer?

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Q: How do figure the answer using the TI-84 calculator?

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