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Nataliya [291]
2 years ago
9

Use the distance formula d= √ (x2-x1)^2+(y2-y1)^2 to find the length of the line with endpoints at (1,3) and (3,1)?

Mathematics
1 answer:
spin [16.1K]2 years ago
6 0
We have that
<span>line with endpoints at (1,3) and (3,1)

we know that

Applying </span><span>the distance formula
d= √ (x2-x1)^2+(y2-y1)^2
</span>d= √ (3-1)^2+(1-3)^2-------> d=√[2²+(-2)²]-----> d=√8
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marusya05 [52]

Answer:

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Hope so it helps cause it's also in my book

7 0
2 years ago
(Photo attached) Trig question. Thanks in advance! :)
kolbaska11 [484]

Answer:

  a) cos(α+β) ≈ 0.8784

  b) sin(β -α) ≈ -0.2724

Step-by-step explanation:

There are a couple of ways to go at these. One is to use the sum and difference formulas for the cosine and sine functions. To do that, you need to find the sine for the angle whose cosine is given, and vice versa.

Another approach is to use the inverse trig functions to find the angles α and β, then combine those angles and find find the desired function of the combination.

For the first problem, we'll do it the first way:

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a) cos(α+β) = cos(α)cos(β) -sin(α)sin(β)

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b) sin(β -α) = sin(arcsin(0.111) -arccos(0.926)) ≈ sin(6.3730° -22.1804°)

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4 0
3 years ago
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mamaluj [8]

9514 1404 393

Answer:

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Step-by-step explanation:

a) 46 + (-2k) for k = 3 is ...

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b) 46 + (-2k) for k = 23 is ...

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__

c) 46 + (-2k) for k = -2 is ...

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3 0
2 years ago
Using the dimensions of a new scale drawing created using a scale factor of 0.15, find the dimensions of the original rectangle.
adoni [48]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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Nonamiya [84]

The factors of 32 as required in the task content are; 2, 4, 8, 16, 32.

<h3>What are the factors of 32?</h3>

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brainly.com/question/12263092

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5 0
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