Step-by-step explanation:
The equation of a parabola with focus at (h, k) and the directrix y = p is given by the following formula:
(y - k)^2 = 4 * f * (x - h)
In this case, the focus is at the origin (0, 0) and the directrix is the line y = -1.3, so the equation representing the cross section of the reflector is:
y^2 = 4 * f * x
= 4 * (-1.3) * x
= -5.2x
The depth of the reflector is the distance from the vertex to the directrix. In this case, the vertex is at the origin, so the depth is simply the distance from the origin to the line y = -1.3. Since the directrix is a horizontal line, this distance is simply the absolute value of the y-coordinate of the line, which is 1.3 inches. Therefore, the depth of the reflector is approximately 1.3 inches.
Answer:
32
Step-by-step explanation:
the number of options for doors (2) times the number of options for cylinder (2 )times the number of colour options (8) (2x2x8) is 32. My apologies I don't know about number 5
Answer:
$13.52/4 = $3.38 per each towel.
4:13.52
1:n
To find n, divide 13.52 by 4; since, 4 divided by 4 gives us one.
The given inequality is
We need to isolate p, and for that , first we subtract 15 to both sides, that is
Dividing both sides by -30. And on dividing by negative number, the sign of the inequality change . That is
And -10 is less then -2.5 . So the correct option is
Answer:
$11.78
Step-by-step explanation:
14.89+9.33=24.22
36-24.22=11.78
