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3 years ago

Please helppppp it’s due soon and I’m already failing my class!!!

Mathematics

1 answer:

Margarita [4]3 years ago

8 0

Answer:

For an equation like:

y = a*x + b

a is the slope, and this is the rate of change of the function.

For the case of the problem, we know that the equation represents the amount of oxygen in the spaceship as a function of time. Where as the time passes, the quantity of oxygen decreases.

Then the slope is the rate of change that tells how the quantity of oxygen changes as time passes. Then the slope is the amount of oxygen that is consumed per unit of time.

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Find the value of k by<br>quardractic equation two real and equal roots<br>5x - 2kx +20=0

kotegsom [21]

Answer:

k = +10 or -10

Step-by-step explanation:

It's given in the question that the roots of the eqn. are real and equal. So , the discriminant of the eqn. should be equal to 0.

$= > {b}^{2} - 4ac = 0$

$= > {( - 2k)}^{2} - 4 \times 5 \times 20 = 0$

$= > 4 {k}^{2} - 400 = 0$

$= > 4( {k}^{2} - 100) = 0$

$= > {k}^{2} - 100 = 0$

$= > k = \sqrt{100} = + 10 \: or \: - 10$

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3 years ago

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Yasmeen paint 3/4of the window shutters yellow if there are 16 shutters in all how many shutters does she paint yellow

erik [133]

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Answer:

Step-by-step explanation:

3/4 of 16 is ...

3/4 × 16 = (3×16)/4 = 48/4 = 12

Yasmeen paints 12 shutters yellow.

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3 years ago

Whether the expressions 2. 7y - 15 + 2y and 9y 15

ivanzaharov [21]

Answer:

7y-15+2y= 9y-15

9y-15

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Step-by-step explanation:

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3 years ago

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If 17 subs were shared by 22 children fairly, about how much of a sub would each child receive

Furkat [3]

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3 years ago

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PLEASE PLEASE PLEASE HELP!! seriously, i'm behind and i have til monday to make it up ///:

liberstina [14]

I'm not 100% sure, as we don't do this at school here, but I think its :
1) 3 units right, 2 units down
2) (x, y) > (x-12, y+3)
3) (x, y) > (x+9, y-8)

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3 years ago