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3 years ago

Y = 2x - 3 x + 2y = 4

Mathematics

2 answers:

Leno4ka [110]3 years ago

8 0

Answer:

x = 2, y = 1

Step-by-step explanation:

x + 2y = 4

x + 2(2x - 3) = 4

x ,+ 4x - 6 = 4

5x = 10

x = 2

y = 2(2) - 3

y = 1

x = 2, y = 1

uranmaximum [27]3 years ago

6 0

Answer:

x=2 , y = 1

Step-by-step explanation:

x + 2(2x-3) = 4

x+4x-6=4

5x-6=4

5x= 10

x=10/5

x=2

subs x=2 into x +2y=4

2+2y=4

2y=2

y=2/2

y=1

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3 years ago

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6 0

3 years ago

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Novay_Z [31]

(4,8)
(6,12)

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m=12-8/6-4=4/2=2

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y-8=m(x-4)
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7 0

2 years ago

Please help with all, I’ll mark brainliest as long as you tell me how you got that answer.

Mumz [18]

Answer:

function= 2nd,6th

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because in graphing a function, there should only be one y for the x. 2 or more y's in one x is considered as not a function

7 0

3 years ago

Now suppose that bigger cups are ordered and the machine’s mean amount dispensed is set at μ=12. Assuming we can precisely adjus

Elina [12.6K]

Answer:

σ should be adjusted at 0.5.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean 12.

Assuming we can precisely adjust σ, what should we set σtobe so that the actual amount dispensed is between 11 and 13 ounces, 95% of the time?

13 should be 2 standard deviations above the mean of 12, and 11 should be two standard deviations below the mean.

So 1 should be worth two standard deviations. Then

$2\sigma = 1$

$\sigma = \frac{1}{2}$

$\sigma = 0.5$

σ should be adjusted at 0.5.

4 0

2 years ago