I purchased 100 shares of a company stock at $28.75 per share the value is $3,020 how much did I gain
1 answer:
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9514 1404 393
Answer:
8√3 ≈ 13.86 ft
Step-by-step explanation:
The light source is usually placed at the focus, so the focus-vertex distance is p=3 ft. The equation for the parabola with its vertex at the origin is ...
y = 1/(4p)x^2
y = 1/12x^2
The opening for some y-value extends ±x from the axis of symmetry, so is a total of 2x in width.
For y=4, the corresponding value of x is ...
4 = 1/12x^2
48 = x^2
√48 = x = 4√3
Then the width of the searchlight opening is ...
2(4√3 ft) = 8√3 ft ≈ 13.86 ft
Answer:
Step-by-step explanation:
The graph is not attached, however we know that, the volume of a triangular pyramid is given by the formula
where
B is the area of the triangular face
h is the height of the pyramid
we have
substitute the given values