3 years ago

Can someone please help me? No links due to the fact that I can’t open them

Mathematics

2 answers:

Nana76 [90]3 years ago

8 0

Answer:

A is the correct answer

Step-by-step explanation:

║ mean parallel

and the other symbol means perpendicular

Hope this helps! :)

Slav-nsk [51]3 years ago

4 0

Answer:

The answer is A

Step-by-step explanation:

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Illusion [34]

Answer:

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Step-by-step explanation:

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2 years ago

Given right triangle DEF, what is the value of sin(E)? A. 3/5 B. 3/4 C. 4/5 D. 4/3

wariber [46]

Answer: OPTION A.

Step-by-step explanation:

First you must calculate the lenght of the side DF by applying the Pythagorean theorem, as following:

$DE=\sqrt{10^{2}-8^{2}}=6$

Now you can find sin(E) as you can see below:

$sin\alpha=opposite/hypotenuse$

Where:

$\alpha=E\\opposite=DF=6\\hypotenuse=EF=10$

Then:

$sin(E)=6/10$

$sin(E)=3/5$

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3 years ago

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qaws [65]

You can check the following
C=4
C=5
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2 years ago

Please hurry its for a test simplify 1/3x + 1/4 + 2/3x

kykrilka [37]

Answer:

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Step-by-step explanation:

6 0

3 years ago

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Find the value of csc theta, if cos =-3/5; 90 degrees < theta < 180 degrees

Sloan [31]

Answer: $\frac{5}{4}$

Step-by-step explanation:

Given

$\cos \theta =\frac{-3}{5}$

and $\theta$ lies between

$90^{\circ}$

and for this $\theta$ , $\sin$ and $\text{cosec}$ is Positive as they lie in 2 nd Quadrant

$\sin ^2\theta +\cos ^2\theta =1$

$\sin ^2\theta =1-(\frac{-3}{5})^2$

$\sin ^2\theta =1-\frac{9}{25}$

$\sin ^2\theta =\frac{16}{25}$

$\sin \theta =\frac{4}{5}$

$\therefore \text{cosec}\ \theta =\frac{5}{4}$

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3 years ago