Right triangle 30 60 90
short leg = 1/2 hypo = 4√2 / 2 = 2√2
so x = 2√2
long leg = short leg times √3 = 2√2 * √3 = 2√6
so y = 2√6
answer C.
x = 2√2 ; y = 2√6
Answer:
3x=42
Step-by-step explanation:
assume Jay works x hours in daycare, which means he works 2x hours in the grocery store, he totally works 42 hours per week equal to x hours in daycare plus 2x in the grocery store.
Answer:
x = 5
angle measure labelled 6x is 30degrees
Step-by-step explanation:
Find the diagram attached
from the diagram;
6x = 30 (vertically opposite angle)
Divide both sides by 6
6x/6 = 30/6
x = 5
Get the angle labelled 6x
6x = 6(5)
6x = 30degrees
The cofunction of cos is sin(90-x)
90 degrees is equal to PI/2
The cofunction becomes sin(PI/2 - 2PI/9)
Rewrite both fractions to have a common denominator:
PI/2 = 9PI/18
2PI/9 = 4PI/18
Now you have sin(9PI/18 - 4PI/18)
Simplify:
Sin(5PI/18)
