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Sunny_sXe [5.5K]
3 years ago
11

Given the equation 8x=4y+16 generate a plan to rewrite it in slope intercept form which variable do you solve it for?

Mathematics
2 answers:
nalin [4]3 years ago
7 0
1/2y+2 that's the answer
asambeis [7]3 years ago
4 0
Hi there!

Since slope intercept form is y=mx + b, you are trying to solve it for y.

Hope this helps!
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A new drug is introduced that is supposed to reduce fevers. Tests are done with the drug. The drug is given to 40 people who hav
Kitty [74]

Answer:

The 90% confidence interval for the mean time that the drug will take to reduce all fevers for all people is between 304 minutes and 336 minutes

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 40 - 1 = 39

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 39 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.685

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.685\frac{60}{\sqrt{40}} = 16

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 320 - 16 = 304 minutes

The upper end of the interval is the sample mean added to M. So it is 320 + 16 = 336 minutes

The 90% confidence interval for the mean time that the drug will take to reduce all fevers for all people is between 304 minutes and 336 minutes

7 0
4 years ago
Find the domain and range of the function represented by the graph.
Zinaida [17]
The domain & range of the function will be the answer choice B
6 0
3 years ago
What is the length of the longer of the two chords shown?
Rainbow [258]

Answer:

19

Step-by-step explanation:

When 2 chords intersect then the product of the parts of one chord equal the product of the parts of the other chord, that is

12(x - 7) = 4(x + 3) ← distribute parenthesis on both sides

12x - 84 = 4x + 12 ( subtract 4x from both sides )_

8x - 84 = 12 ( add 84 to both sides )

8x = 96 ( divide both sides by 8 )

x = 12

Thus

12 + x - 7 = 12 + 12 - 7 = 17

4 + x + 3 = 4 + 12 + 3 = 19 ← longer chord

5 0
4 years ago
Read 2 more answers
Factor completely.<br><br> x2+7x−18<br><br><br><br> Please Help
nikdorinn [45]

Answer:

(x+9)(x-2)

Step-by-step explanation:

There has to be two numbers that add to be 7 and multiply to be -18.

So 9 and -2

Hope this helps

Brainliest would be appreciated

6 0
3 years ago
This table gives a few (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis pairs of a line in the coordinate plane.
PilotLPTM [1.2K]

From the linear function formed by the points given in the table, it is found that the x-intercept is of -14.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem, when x increases by 20, y decays by 6, hence the slope is given by:

m = -\frac{6}{20} = -0.3

Then:

y = -0.3x + b.

When x = -54, y = 12, hence:

y = -0.3x + b

12 = -0.3(-54) + b.

b = -4.2.

Thus, the equation is:

y = -0.3x - 4.2.

The x-intercept is the value of x when y = 0, hence:

-0.3x - 4.2 = 0.

x = -4.2/0.3

x = -14

More can be learned about linear functions at brainly.com/question/24808124

6 0
3 years ago
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