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4 years ago

Y = mx + b (b) Your answer: b = y - mx b = x- ym b = y + mx b = mx-y

Mathematics

2 answers:

Ne4ueva [31]4 years ago

5 0

I think it is b=mx-y if the question is asking what i think it is asking

yulyashka [42]4 years ago

4 0

The answer is b=y-mx.

You would subtract b from both sides, giving you y-b=mx. You have to get b isolated, so you'd subtract y from both sides, giving you -b=mx-y. The b is positive, so you'd multiply -1 to both sides, giving you b=-mx+y. By rearranging the letters you get b=y-mx.

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Help? I'll give brainliest

Andreyy89

Answer:

700 divided by 17 14 divided by 17

not sure about the middle one

answer: 102

Step-by-step explanation:

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3 years ago

A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 11.4

GREYUIT [131]

Answer:

The 90% confidence interval for the true mean number of reproductions per hour for the bacteria is between 11.2 and 11.6 reproductions.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.645*\frac{2}{\sqrt{375}} = 0.2$

The lower end of the interval is the sample mean subtracted by M. So it is 11.4 - 0.2 = 11.2 reproductions.

The upper end of the interval is the sample mean added to M. So it is 11.4 + 0.2 = 11.6 reproductions.

The 90% confidence interval for the true mean number of reproductions per hour for the bacteria is between 11.2 and 11.6 reproductions.

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3 years ago

Read 2 more answers

Can someone please help me with these postulate questions I've been asking for days now. I will mark Brainliest if right!!! Expl

Serjik [45]

Greetings, I am BrotherEye

Answer:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal. When the three angle pairs are all equal, the three pairs of sides must also be in proportion.

Step-by-step explanation:

Best Of Luck

BrotherEye

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3 years ago

Expression Name Expression

gulaghasi [49]

Answer:

b hope this helps

Step-by-step explanation:

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3 years ago

Y is inversely proportional to X. When y 20, x = 2 Work out y when x = 5

Oliga [24]

Answer:

When x = 5, y = 8.

Step-by-step explanation:

y is inversely proportional to X.

This means that we solve this using the rule of three for inversely proportional variables, that is, we apply line multiplication instead of cross multiplication.

y = 20, x = 2

Work out y when x = 5

20 - 2

x - 5

Applying line multiplication

$5y = 40$

$y = \frac{40}{5}$

$y = 8$

When x = 5, y = 8.

6 0

3 years ago