3 years ago

Find X in the diagram

Mathematics

1 answer:

AlekseyPX3 years ago

4 0

Answer:

x=95

Step-by-step explanation:

Angles on a line add to 180. Therefore, finding

180=85+x

Will result in the correct answer. Also, solving

180=35+2x

for x will get you 95.

You might be interested in

Then solve each problen

marysya [2.9K]

Answer:

a(0.80)=60

a=60/0.80

a=75

8 0

3 years ago

Find s(20) for the sequence s(n)=5n-2,ne {1 2, 3,... }

zavuch27 [327]

Answer:

Step-by-step explanation:

S(20)=

5*20-2=100-2=98

3 0

3 years ago

Please help me <br><br>If 180°<α<270°, cos⁡ α=−8/17, what is sin -α?

rewona [7]

Starting from the fundamental trigonometric equation, we have

$\cos^2(\alpha)+\sin^2(\alpha)=1 \iff \sin(\alpha)=\pm\sqrt{1-\cos^2(\alpha)}$

Since $180$ , we know that the angle lies in the third quadrant, where both sine and cosine are negative. So, in this specific case, we have

$\sin(\alpha)=-\sqrt{1-\cos^2(\alpha)}$

Plugging the numbers, we have

$\sin(\alpha)=-\sqrt{1-\dfrac{64}{289}}=-\sqrt{\dfrac{225}{289}}=-\dfrac{15}{17}$

Now, just recall that

$\sin(-\alpha)=-\sin(\alpha)$

to deduce

$\sin(-\alpha)=-\sin(\alpha)=-\left(-\dfrac{15}{17}\right)=\dfrac{15}{17}$

6 0

3 years ago

Read 2 more answers

How many acute angles are in an acute triangle?

Leokris [45]

Answer:

Three acute angles.

Explanation:

There are always three acute angles in an acute triangle.

8 0

3 years ago

Triangle ABC is transformed to form triangle XYZ. If AC = BC and the perimeter of triangle ABC is 37 inches. What are the length

laiz [17]

Answer: xy=11 in.; yz= 13 in.; xz=13in.

Step-by-step explanation:

i’m pretty sure that’s it

8 0

3 years ago