Hey there! I'm happy to help!
Let's think of this angle being put inside of a unit circle (a circle with a radius of one). This angle is going to stay inside the first quadrant, so all of its trigonometric ratios will be positive.
We are given that the sin of x is 1/5. To get the x by itself, we can just find the inverse sine of both sides to isolate the x.
x=sin(1/5)
x≈ 11.536959
2x≈ 23.073918
Now, we just cosine this value.
cos2x≈ 0.92
I hope that this helps! Have a wonderful day!
Answer:
Your final answer will be, x^2 +4x -12
Step-by-step explanation:
I GOT YOU!! Just did this question its 18 5/6 your welcome...
Since I know that 64/16 is 4, I know that 67.6/16 is a bit bigger than 4, but smaller than 5 due to that 80/16=5. To find the quotient, we know that 16*4=64, so 67.6-64=3.6, so it's 4 remainder 3.6. To make it an actual number, we do 4+3.6/16
Answer:
1) 80+(-20)
2) -13+9
3) -5+(8)
I don't quite know how to explain
Just think about 1) 60 is the new temperature, in order to have an addition problem we're going to have to use negative numbers. Since we had to subtract 20, in order to use addition it would be 80+(-20).