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katrin [286]
3 years ago
10

How many solutions does the system have? y= -2x - 4 y= 3х + 3

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
8 0

Answer:

One solution

Step-by-step explanation:

The system has one solution and that is (-1.4, -1.2)

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Answer: 12.

To solve this problem, let's first solve for x. Thi is easiest done by figuring what QR is in terms of x using two equations, both from different lines.

In the first line:
QR = 15 - 4x.

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Now, we have to set these equations equal to each other. 
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Step-by-step explanation:

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2 years ago
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stich3 [128]

We have been given that  you drop a ball from a window 50 metres above the ground. The ball bounces to 50% of its previous height with each bounce. We are asked to find the total distance traveled by up and down from the time it was dropped from the window until the 25th bounce.            

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