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3 years ago

PLEASE HELP ILL GIVE 49 POINTS! THANKS! Show work

Mathematics

2 answers:

Bond [772]3 years ago

4 0

ANSWER:

y = -2x + 8

ABOUT POINT SLOPE FORM:

y - Y1 = m (x - X1)
Y1 & X1 is a point on the line
The form allows you to identify the slope & the point on the line

ABOUT SLOPE INTERCEPT FORM:

y = mx + b
m represents the slope
b represents the y - intercept AKA the starting point

y - Y1 = m (x - X1)

y - 5 = -2 (x - 3)

y - 5 = -2x + 3

+ 5 + 5

y = -2x + 8 --- IN SLOPE INTERCEPT FORM

Hope this helps you!!! :)

NemiM [27]3 years ago

3 0

Answer:

y = -2x+11

Step-by-step explanation:

If we have a slope and a line, we can use the slope intercept form of a line

y-y1 = m(x-x1)

where (x1,y1) is the point and m is the slope.

Substitute in what we know

y-5 = -2 (x-3)

We want it in slope intercept form which is y = mx+b

Distribute the -2

y-5 = -2x+6

Add 5 to each side

y-5+5 = -2x +11

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Please help meeeeee :)

kifflom [539]

Hello!

You put -3 in for x

$-3^{2} - 2(-3)$

Combine like terms

9 + 6 = 15

The answer is 15

Hope this helps!

4 0

3 years ago

Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of

ladessa [460]

Answer:

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

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:

$\alpha = \frac{1-0.98}{2} = 0.01$

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 $1-0.01 = 0.99$ , so $z = 2.326$

Now, find the margin of error 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.

Find the margin of error for the confidence interval for the population mean with a 98% confidence level.

$M = 2.326*\frac{7}{\sqrt{32}} = 2.88$

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

5 0

3 years ago

Tabitha bought peppers that cost $0.79 per pounds. she paid $3.95 for the peppers. how many pounds of peppers did she buy? show

WINSTONCH [101]

For the answer to the question above, it is 0.79 divided by 3.95 is 5 so she bought 5lbs. So the answer to the question above is 5.
I hope my answer helped you in your problem. Feel free to ask. Have a nice day!

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3 years ago

Andrea is selling candles for a fundraiser. She spent $50 on supplies for making the candles. She plans to sell the

Debora [2.8K]

The independent variable would be the Candles she sells for $10

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4 years ago

A client, in the manic phase of bipolar disorder, is being discharged home on an antimanic drug. What antimanic drug will best p

galina1969 [7]

Answer:

Lithium

Step-by-step explanation:

According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question the most common long term drug for bipolar disorder is Lithium. This is a mood stabilizer that controls the manic and depression stages of bipolar disorder, it is highly effective and is prescribed long term along with therapy sessions.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

8 0

4 years ago

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