The answer is the 3rd option
30-60-90 triangle for reference
Remember soh cah toa
O:opposite, a:adjacent, h:hypotenuse
S:sin c:cosine t:tangent
Hope this helped :)
22 - 1 = -3d
21= -3d
21/-3= d
-7 = d
Bring the 1 to the other side by doing the opposite sign, so subtract 1. Solve the left side.
Bring the 3 to the other side by doing the opposite sign, so divide 21 by -3.
End with D equaling -7
Answer:
all are true except the -8
Because you can't do it.
And I think your teacher means turn it into a improper fraction
Volume of a cylinder = πr^2h
π(2)^2(3)
12π
v=37.68 inches cubed