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telo118 [61]
2 years ago
8

→The number line below represents which equation?←

Mathematics
2 answers:
horrorfan [7]2 years ago
7 0

Answer: D; 3 - 7 = -4

Explanation: Since 3 is the largest value in this equation and the arrow is going to the left (starting at a positive and stopping at a negative), you count backwards 7, which would be subtracting 3 from 7 in this case.

timofeeve [1]2 years ago
4 0
It would be D; it starts at 3 and goes 7 times to the left and getting the answer of -4
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2 years ago
What is BE ?<br> Please explain it in full dont just give me an answer
posledela
There are two methods to solve this problem. One of them is the typical method and the other one is the short-cut. I will explain the shortcut

Short-cut: 
This method is quick and easy, and works with ALL triangles, which is why I suggest you use this. You make proportions. Since the triangles are similar, we can use CPCTC. Thereafter,
\frac{AD}{CE}= \frac{DB}{EB}

Now, you just need to identify the terms, substitute, and solve for the unknown, which would be k. 

\frac{12}{3} = \frac{k+5}{k-7} \\ 12(k-7)=3(k+5) \\ 12k-84=3k+15 \\ 9k=84+15 \\ 9k=99 \\ k=11[/tex]

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BE=K-7
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BE=4

Your answer is 4.





5 0
3 years ago
What is 3/7 plus 3/5 in fraction form?
Gnom [1K]
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3 years ago
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