Answer:
Kevin was 2 times as old as Gabriela 12 years ago then Kevin was 6 times as old as Gabriela so now Kevin should be 36 years old because if you divide 12 by 2 it's gonna give you 6 so then he was 6 times old as Gabriela so now he's 36 years old.
Step-by-step explanation:
yes, they are similar because each side length is equal making it an equilateral triangle. As a result, the two triangles are similar.
Answer:
thankssss
Step-by-step explanation:
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!