A parabola of the form, x = (a)y² + (b)y + c has a vertex, (h, k)
where
k = -b/2a
and
h = (a)k² + (b)k + c
In your case:
k = -0/{2(3)}
k = 0
h = 3(0)²
h = 0
The vertex is: (0, 0)
Let f = the focal width
f = 1/4a
f = 1/12
The focus is at
(h + f, k)
(1/12, 0)
The equation of the directrix is:
x = h - f
x = -1/12
Answer:
<u>Given:</u>
<u>Isolate x:</u>
<u>Divide both sides by 2πz:</u>
Answer:
3.14 x 10,000 equals 31,400
Step-by-step explanation:
Answer:
$274.77
Step-by-step explanation:
213.00 ÷29 =61.769999 then add 213.00 plus 61.76
I actually rounded up maybe I shouldn't of then answer would be $274.76. im not postive this is correct .
Answer:
The height of the incline is 462 feet
Step-by-step explanation:
Here, we are asked to calculate height, given the angle of elevation.
When we talk about angle of elevation, we refer to the observation angle that we have when we look up from a position which is at the base.
Please check attachment for diagrammatic representation of the question terms.
From the attachment, we can see that we have a right angled triangle. We are asked to calculate the opposite given the adjacent.
Thus the trigonometric identity to use is the Tangent
Tan 30 = h/800
h = 800 * Tan 30 = 461.88 approximately 462 feet