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insens350 [35]
2 years ago
7

Dr. M wanted to estimate the mean cholesterol level for men living in Hartford. He took a sampled of 20 men from Hartford and fo

und that mean cholesterol level is 86 with a standard deviation of 12. He wants to construct a 99 % confidence interval for mean cholesterol level of men.
In this case, the level of significance a and the critical value?​
Mathematics
1 answer:
Gekata [30.6K]2 years ago
4 0

Answer:

answer is in an image here

imageshare.best/image.php?id=JS9NDO

Explanation:

copy n paste in browser

not a bot btw

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Please help solve!!<br> -5|x|+4=14
eduard

Answer:

2

Step-by-step explanation:

|x| means absolute value

|x| means if x is positive or negative, its still positive

-5|x|+4=14

-5|x|=10

|x|= -2

answer is 2

3 0
1 year ago
Read 2 more answers
Evaluate 128 divided by (2^2)^3 - 3^3
svet-max [94.6K]

Answer:

-25

Step-by-step explanation:

Order of Operations

8 0
3 years ago
HELP ME I WILL MARK BRAINLIEST
Westkost [7]

Answer:

The answer is 1/15

I hope it helps

7 0
3 years ago
Triangle FGH is translated using the rule (x,y) &gt; (x+3,y-1). What are the coordinates of H ?
Masteriza [31]

Answer: H'(4,-3)

Step-by-step explanation:

For this exercise you must remember that the original figure (before a transformation) is called "Pre-Image" and the one obtained after the transformation is called "Image".

 A Translation is defined as a transformation in which the figure is moved a  fixed distance in a fixed direction. In this kind of transformatiosn the size and shape do not change and the figure is not flipped.

In this case you know that the Pre-Image is the Triangle FGH.

You can identify in the picture that its vertex H has these coordinates:

H(1,-2)

Where:

x=1\\y=-2

Since the rule is:

(x,y) → (x+3,y-1)

You can substitute the coordinates of H into the given rule in order to find the coordinates of H'. This is:

H'=(1+3,-2-1)=(4,-3)

7 0
3 years ago
Find the equation of the line<br> That is perpendicular to y=-2x+1 and contains the point (8,2)
skelet666 [1.2K]

Answer:

y=.5x-2

Step-by-step explanation:

If one line is perpendicular to another that means that their slopes are negative reciprocals

which means that the slope (or m in y=mx+b) is .5

so far we have

y=.5x+b

to solve for b we plug in (8,2)

2=.5(8)+b

2=4+b

-2=b

therefore our equation is

y=.5x-2

5 0
3 years ago
Read 2 more answers
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