Answer:
This is pretty obvious, the answer is A, 2/3
Step-by-step explanation:
In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Similarly, the ratio of lemons to oranges is 6∶8 (or 3∶4) and the ratio of oranges to the total amount of fruit is 8∶14 (or 4∶7).
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Lin should aim the ball at 7.8 feet away from point B
From the question (see attachment), we have the following equivalent ratios:

This is so because triangles ABE and DCE are similar triangles.
Such that:



So, we have:


Make CE the subject in 

Substitute 20 - BE for CE in 

Express as ratio

Cross multiply

Open bracket

Collect like terms


Divide both sides by 41

Hence, she should aim at 7.8 feet away from point B
Read more about similar triangles at:
brainly.com/question/14285697
Answer:


Step-by-step explanation:




Answer:

Step-by-step explanation:
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<u>Lesson : Simplifying:</u></h2><h2>
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Given:

"Simplifying"
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<em>Remove the parenthesis</em>
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<em>Multiply the numbers</em>
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<em>Apply the exponent rule</em>
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<em>Add the numbers</em>
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<em>Apply the exponent rule once again</em>
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<em>Add the numbers once again</em>
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