Answer:
48.52
Step-by-step explanation:
SOHCAHTOA
Use tan(x) = opposite / adjacent
tan (15) = 13/x
x = 13/ tan(15)
x = 48.5166605 round to 48.52
*when using calculator don't forget to use degrees not radians or you will get the wrong answer*
The answer is the 5th one
Answer:
2 hours
Step-by-step explanation:
Y=25x+30
80=25x+30
50=25x
2=x
Answer:
Step-by-step explanation:
We have the cone and the half-sphere.
The formula of a volume of a cone:
r - radius
H - height
We have r = 7cm and H = (22-7)cm=15cm. Substitute:
The formula of a volume of a sphere:
R - radius
Therefore the formula of a volume of a half-sphere:
We have R = 7cm. Substitute:
The volume of the given shape:
Substitute: