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aleksandrvk [35]
3 years ago
6

Really need help on this math question! “Jill is draining her pool before winter arrives.

Mathematics
1 answer:
Burka [1]3 years ago
5 0

Answer:

f(x)=2000-8x

Step-by-step explanation:

2000 is initial amount that gets subtracted

8x is the amount of gallons being siphoned out, where x is t, or minutes.

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What is the correlation coefficient with the following data points: (1,6), (3,2), (7,5), (6,2)?
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Answer:

Option D → -0.28

Step-by-step explanation:

4 0
2 years ago
Which equations represent the line that is parallel to 3x – 4y = 7 and passes through the point (-4,-2)? Select two
seropon [69]

Answer:

4y = 3x + 4

3x-4y = -4 is correct

Step-by-step explanation:

This is what we do.

We first express the first equation in the form;

y = mx + c

where m represents the slope of the line

Thus we have;

4y = 3x -7

divide through by 4

y = 3/4x -7/4

Thus the slope here is the coefficient of x which is 3/4

Now, since the lines are parallel, it means that their slopes are equal

So the slope of the other line too is 3/4

We now use the point slope form to find the equation of this other line

Mathematically, that would be;

y-y1 = m(x-x1)

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Substituting this into the point slope equation, we have;

y-(-2) = 3/4(x-(-4))

y + 2 = 3/4(x + 4)

Cross multiply

4y + 8 = 3x + 12

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5 0
3 years ago
4x-5=19 please help thank you
frosja888 [35]

Answer:

x=6

Step-by-step explanation:

4x - 5 = 19

4x = 19 + 5

4x = 24

x =  \frac{24}{4}

x = 6

4 0
2 years ago
Read 2 more answers
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3 years ago
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Dan recently bought a new mountain bike for $550. His friend works
Wittaler [7]
$990
550 x .80 = 440
$550 + $440 = $990
8 0
3 years ago
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