Answer:
the answer is c
Step-by-step explanation:
5/8-3/8 is 1/4 + 2 is 2 1/4 then put into improper fraction
Answer:
D
Step-by-step explanation:
We are given that:

And we want to find the value of tan(2<em>x</em>).
Note that since <em>x</em> is between π/2 and π, it is in QII.
In QII, cosine and tangent are negative and only sine is positive.
We can rewrite our expression as:

Using double angle identities:

Since cosine relates the ratio of the adjacent side to the hypotenuse and we are given that cos(<em>x</em>) = -1/3, this means that our adjacent side is one and our hypotenuse is three (we can ignore the negative). Using this information, find the opposite side:

So, our adjacent side is 1, our opposite side is 2√2, and our hypotenuse is 3.
From the above information, substitute in appropriate values. And since <em>x</em> is in QII, cosine and tangent will be negative while sine will be positive. Hence:
<h2>

</h2>
Simplify:

Evaluate:

The final answer is positive, so we can eliminate A and B.
We can simplify D to:

So, our answer is D.
Answer:
It looks like c
Step-by-step explanation:
I'm not completely sure bit i did this last year
Answer:
a 7/20. B 13/20
Step-by-step explanation:
800 X 35% = 280
280/800=7/20
5% of the kids are in health. I got this from simplifying 3/60 which is 1/20
After that, i set up this equation: 1/20 times x/100
I would then divide 20 and 100 to get 5 and that’s basically what I did