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Lilit [14]
3 years ago
12

BC =using the Distance Formula

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
5 0

Answer: Option A: 5

Step-by-step explanation:

If yo have the pairs (a, b) and (c, d)

The distance between these two points is:

distance = √( (a - c)^2 + (b - d)^2)

Here we want to find the distance between points B and C.

We can see that the coordinates of each one are:

point B: (-5, 5)

Point C: (-1, 2)

Then the distance between these points is:

AB = √( (-5 -(-1))^2 + (5 -2)^2) = 5

AB = √( 4^2 + 3^2)

Then the correct option is A

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Answer:

The answer is the option B

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Step-by-step explanation:

we know that

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in this problem we have

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so

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substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

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x1=\frac{-18+10} {2}=-4

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