The answer is A. 12!
Both 60 and 72 are able to be divided by 12, while 18 is too high and 6 isn’t the highest GCF! Hopefully, the explanation will be helpful with other questions as well!
Look at the unit circle and apply the hint. The x- and y-coordinates of each point are cosθ and sinθ, respectively. The radius of the unit circle is, of course, 1, and the center point is (0, 0).
General form of the parametric equations for a circle:
x = r·cosθ+h
and
y = r·sinθ+k
where r is the radius and (h, k) is the center. Therefore, the parametric equations for the unit circle are
x = cosθ
and
y = sinθ
:::::
The parametric equations
x = 2cosθ
and
y = 2sinθ
define a circle of radius 2, centered at the origin.
:::::
The parametric equations
x = 4cosθ
and
y = 2sinθ
define a horizontal ellipse centered at the origin, with transverse axis of length 8 and conjugate axis of length 4.
:::::
If a = b then
x = a·cosθ
and
y = b·sinθ
define a circle centered at the origin.
If a > b, then
x = a·cosθ
and
y = b·sinθ
define a horizontal ellipse centered at the origin.
If a < b, If a = b then
x = a·cosθ
and y = b·sinθ
define a vertical ellipse centered at the origin.
I know one of them is 1/2
Answer:
D. 38.8 feet.
Step-by-step explanation:
Let the height of the apple be x + 5.5 feet.
Then tan 48 = x / 30
x = 30 tan 48
x = 33.3 feet.
So the height of the apple = 33.3 + 5.5
= 38.8 feet.