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4 years ago

Someone please help me

Mathematics

1 answer:

andreev551 [17]4 years ago

8 0

Sin² Ф + cos² Ф =1, if sin Ф = 11/61, that means cos² Ф =(11/61)²

(11/61)² + cos² Ф = 1; cos² Ф = 1 - (11/61)²

cos² Ф = 3600 / 3721 and cos Ф =√(3600/3721) = 60/61, so cos Ф =60/61

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How do you solve 0.75(8+e)=2−1.25e ?

mash [69]

Distribute first.
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Then subtract 2 from both sides,
4+.75n=-1.25e
Next subtract .75 from both sides,
4=-2e
Divide both sides by -2, and you will get e= -2. Hope this helps!

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3 years ago

What is the slope between the points (4,–1) and (–4,3)?

alex41 [277]

The formula for slope is $\frac{rise}{run} = \frac{y2-y1}{x2-x1}$ .

Subtract y1 from y2. (y1= -1, y2 = 3)

3 - -1 = 4

Now subtract x1 from x2. (x1 = 4, x2 = -4)

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Divide the difference between the y coordinates by the difference between the x coordinates.

$\frac{4}{-8}$ or 4 ÷ -8 = -0.5

<h2>Answer:</h2>

<u>The slope between the two points is </u><u>-0.5</u><u>.</u>

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4 years ago

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AleksandrR [38]

Answer:

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Step-by-step explanation:

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7 - 4 = 3

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Switch to % and Round.

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3 years ago

Read 2 more answers