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Umnica [9.8K]
3 years ago
11

If x = -1, x cubed + x

Mathematics
2 answers:
forsale [732]3 years ago
6 0
(-1)(-1)(-1)+(-1)=-1-1=-2

-2

Hope this helps!
Simora [160]3 years ago
5 0
(-1)^3 + (-1)
-1 + -1
-2
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Micah places a mirror on the ground 24 feet from the base of a tree. He walks
irina [24]

The height of tree is 8 feet

<h3><u>Solution:</u></h3>

Given, Micah places a mirror on the ground 24 feet from the base of a tree

At that point, Micah's eyes are 6 feet above the ground  

And he is 9 feet from the image in the mirror.  

To find : height of tree = ?

Let "n" be the height of tree

From the question, we can see there is a directly proportional relationship between heights and distances.

Proportional relationships are relationships between two variables where their ratios are equivalent.

\frac{\text { height of micah eyes above ground }}{\text { distance of micah from mirror }}=\frac{\text { height of tree above the ground }}{\text { distance of tree from mirror }}

\begin{array}{l}{\frac{6 \text { feet }}{9 \text { feet }}=\frac{n \text { feet }}{24 \text { feet }}} \\\\ {\frac{6}{9}=\frac{n}{24}} \\\\ {\text { n }=\frac{1}{3} \times 24} \\\\ {\text { n }=8}\end{array}

Hence, the height of the tree is 8 feet

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3 years ago
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Anvisha [2.4K]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

Step-by-step explanation:

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