3 years ago

What would this equation be in vertex form? Show all steps please! :) y2 + 16x - 4y = -20

1 answer:

5 0

Answer:

Liquid R has a mass of of 1 kg at a temperature of 30°c kept in a refrigerator to freeze . Given the specific heat capacity is 300 J kg-¹ °c-1 and the freezing point is 4°c . Calculate the heat release by liquid R.

Step-by-step explanation:

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lora16 [44]

This would equal (9+25)/2

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3 years ago

4y=-3-x<br> 7x-4y=43<br> elimination please help!!

riadik2000 [5.3K]

Answer:

x = 5 y =-2

Step-by-step explanation:

You can substitute the 4y in,
7x - (-3-x) = 43
7x + 3 + x = 43
8x + 3 = 43
8x = 40
x = 5

Then plug the x back into the equation,
4y = -3 - 5
4y = -8
y = -2

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Dafna11 [192]

Answer:

300

Step-by-step explanation:

24000/80

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Aloiza [94]

The answer for this is $43.9425

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3 years ago

Factor out the GCF, then solve the following expression.<br> 2w² - 8w = 0

rusak2 [61]

Answer:

w = 0, 4

Step-by-step explanation:

The GCF is 2w

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