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Aliun [14]
3 years ago
11

HELPP!

Mathematics
2 answers:
Mashutka [201]3 years ago
4 0

Answer

when you place a source of signal at a focal point of an ellipse, the signal will be reflected to the other focal point position

When you place a source of rays as a signal at the focal point of a hyperbola, the ray will be reflected directly away from the other focal point

When you place a source of rays as a signal at one of the parabola focus, the ray will be reflected in lines that are parallel to the axis of the parabola.

Digiron [165]3 years ago
4 0

Explanation:

In each case, rays through one focus are reflected along a line through the other focus.

The second focus of a <em>parabola</em> is at infinity, so rays through the focus are reflected along parallel paths.

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Steve and Ben have some money in their wallets. If Steve gives Ben $3, Ben will have twice as much as Steve. If Ben gives Steve
Zigmanuir [339]

Answer:

Money owned by Steve = $11

Money owned by Ben = $13

Step-by-step explanation:

Let x denotes the money owned by Steve and y denotes the money owned by Ben.

Then, Steve gives $3 to Ben

Money left with Steve = x-3 and Ben = y+3

Now, Ben will have twice as much as Steve.

⇒ y+3  = 2(x-3) .............(1)

If Ben gives Steve $7

Money left with Steve = x+7 and Ben = y-7

Then,  the amount Ben has will be one-third that of Steve’s.

⇒ y-7 = \frac{1}{3} (x+7) ..........(2)

Solving equation (1) and (2) by elimination method, we get

x = 11 and y = 13

⇒ Money owned by Steve = $11

Money owned by Ben = $13

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3 years ago
The same price of an item is $48 after a 40% discount what was the original price
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In short, Your Answer would be $80

Hope this helps!
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