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Mars2501 [29]
3 years ago
6

I don’t know the answer Someone pls help

Mathematics
2 answers:
Zinaida [17]3 years ago
8 0

Answer:

Step-by-step explanation:

4 x 7/8 = 28/8 or  3 4/8 or  3  1/2

<em>(4x7=28)</em>

<em>Denominator stays the same.</em>

You totally got it right!! Don't doubt yourself!!

Orlov [11]3 years ago
4 0

Answer:

Ye you got it right

Step-by-step explanation:not that hard

ITS RIGHT

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Find tanθ if sinθ=−25√5 is in the third quadrant.
irinina [24]

Using a trigonometric identity, it is found that the tangent of the angle is of:

\tan{\theta} = \frac{2}{11}

<h3>How to find the sine of an angle given the cosine, or vice versa?</h3>

The sine and the cosine of the angle are related according to the following identity:

\sin^2{\theta} + \cos^2{\theta} = 1

For this problem, the sine is given by:

\sin{\theta} = -\frac{2}{5\sqrt{5}}

Hence the cosine is found as follows:

\left(-\frac{2}{5\sqrt{5}}\right)^2 + \cos^2{\theta} = 1

\frac{4}{125} + \cos^2{\theta} = 1

\cos^2{\theta} = \frac{121}{125}

\cos{\theta} = \pm \sqrt{\frac{121}{125}}

On the third quadrant the cosine is negative, hence:

\cos{\theta} = -\frac{11}{5\sqrt{5}}

<h3>What is the tangent of an angle?</h3>

The tangent of an angle is given by the sine divided by the cosine, hence:

\tan{\theta} = \frac{-\frac{2}{5\sqrt{5}}}{-\frac{11}{5\sqrt{5}}} = \frac{2}{11}

More can be learned about trigonometric identities at brainly.com/question/26676095

#SPJ1

4 0
2 years ago
Which fractions add together to make 11/5?
makvit [3.9K]
6/5 and 5/5 put together make 11/5
7 0
3 years ago
Read 2 more answers
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