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bekas [8.4K]
3 years ago
9

Which number satisfies the inequality? 3/11 < x <sqrt 0.25A. 30%B. 7/9​

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
Wait what do you mean
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NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t2+121t
Alenkasestr [34]

NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by

h(t)=-4.9t^2+121t+283

The sea level is represented by h = 0, therefore, to find the corresponding time when h splashes into the ocean we have to solve for t the following equation:

h(t)=0\implies-4.9t^2+121t+283=0

Using the quadratic formula, the solution for our problem is

\begin{gathered} t=\frac{-(121)\pm\sqrt{(121)^2-4(-4.9)(283)}}{2(-4.9)} \\ =\frac{121\pm142.083778...}{9.8} \\ =\frac{121+142.083778...}{9.8} \\ =26.8452834694... \end{gathered}

The rocket splashes after 26.845 seconds.

The maximum of this function happens at the root of the derivative. Differentiating our function, we have

h^{\prime}(t)=-9.8t+121

The root is

-9.8t+121=0\implies t=\frac{121}{9.8}=12.347

Then, the maximum height is

h(12.347)=1029.99

1029.99 meters above sea level.

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1 year ago
Somebody please help I hate geometry
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Answer:

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Marge bought a computer for $699 on the installment plan. The terms of the plan were a down payment of $100, then payments of $5
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The answer would be $796 because your down payment is $100 plus the fact marge had to pay $58 for 12 months there for equaling $696 dollars for the 12 month then adding your down payment of $100 giving you your answer of $796!
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2 5/6 miles is the answer to the question
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11. El 9 de enero venden a crédito a Stan Lee Co las siguientes mercancías: 4
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Step-by-step explanation:

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