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Lubov Fominskaja [6]
3 years ago
5

Please I need help with these 2 questions!!

Mathematics
1 answer:
Elodia [21]3 years ago
4 0

Answer:

Step-by-step explanation:

5. A straight line (view that attached graph)

6. y = x² + (-3) is equivalent to y = x² - 3

0:

y = x² - 3

y = 0² - 3

y = 0 - 3

y = -3

(0, -3)

1:

y = x² - 3

y = 1² - 3

y = 1

y = -2

(1, -2)

2:

y = x² - 3

y = 2² - 3

y = 4 - 3

y = 1

(2, 1)

3:

y = x² - 3

y = 3² - 3

y = 9 - 3

y = 6

(3, 6)

So the answers are: -3, -2, 1, 6

Hope this helps!

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Oksanka [162]

Answer: 30 feet per second

========================================

x = diameter, y = speed of water

y varies inversely with respect to x, so, y = k/x for some constant k

If x = 0.6 and y = 5 pair up, then y = k/x turns into 5 = k/0.6 which solves to k = 3 when you multiply both sides by 0.6

So the equation y = k/x turns into y = 3/x

Now plug in the diameter x = 0.1 to find the speed to be...

y = 3/x

y = 3/0.1

y = 30 feet per second


4 0
3 years ago
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