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Ilya [14]
3 years ago
8

PLEASE HELP!!!!!!!!​

Mathematics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

D

Step-by-step explanation:

I took the quiz :)

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If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = ____ and cos -115 degrees =_____
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If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = -0.91 and cos -115 degrees = 0.42

Step-by-step explanation:

3 0
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Add or Subtract to simplify
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Which equation represents the line that passes through the points (–3, 7) and (9, –1)?
galben [10]

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Step-by-step explanation:

first, we find the slope

slope = (y2 - y1) / (x2 - x1)

(-3,7)....x1 = -3 and y1 = 7

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now we sub

slope(m) = (-1 - 7) / (9 - (-3) = -8 / (9 + 3) = -8 / 12 reduces to - 2/3

y = mx + b

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use either of ur points...I will use (-3,7)...x = -3 and y = 7

now we sub and find b, the y intercept

7 = -2/3(-3) + b

7 = 2 + b

7 - 2 = b

5 = b

so ur equation is : y = -2/3x + 5 <===

7 0
3 years ago
Read 2 more answers
Find an equivalent ratio in simplest terms: 25:75
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Answer:

1:3

Step-by-step explanation:

Both numbers are divisible by 25:

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∴ The simplified ratio is 1:3

Hope this helps!

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