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Lina20 [59]
3 years ago
10

Hi can u pls help am trying to figure this out

Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0

Answer:

.

Step-by-step explanation:

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An astronaut on the moon drops a tool from the door of the landing ship. The quadratic function f(x)=-2x^2+10 models the height
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Answer:

2.2 seconds.

Step-by-step explanation:

We have been given that an astronaut on the moon drops a tool from the door of the landing ship. The quadratic function f(x)=-2x^2+10 models the height of the tool, in meters, after x seconds.

To find the time, it will take for the tool to hit the surface of moon, we will set f(x)=0 and solve for x as:

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Divide both sides by negative 2:

\frac{-2x^2}{-2}=\frac{-10}{-2}

x^2=5

Now, we will take square root of both sides:

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Since time cannot be negative therefore, it will take 2.2 seconds for the tool to hit the surface of the moon.

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4 years ago
Which of the following are solutions to the equation below?
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There are several ways in which we could answer this question. My choice is to actually solve the given quadratic equation, x^2 + 4x + 4 = 12.

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Thus, the two real, unequal roots are

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Step-by-step explanation:

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You'd need D. Routing Number
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