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Nataly [62]
3 years ago
13

W = f d, solve for d

Mathematics
1 answer:
zvonat [6]3 years ago
7 0
D=W over F j3jejensbshhsnsnsnjs
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Please help, this is a really big test. Please be correct as well :)<br> Thank you!
xenn [34]

The correct answer is: D (2,1)

8 0
3 years ago
Read 2 more answers
The same sample of 25 seniors from the urban school district with the mean and standard deviation N(450, 100). A 95% confidence
kvv77 [185]
The margin of error of a sample is given by:
B = z(α/2) σ/√n; where B is the margin of error = 25, z(α/2) is the level of significant = 1.96, σ is the standard deviation = 100 and n is the sample size.

25 = 1.96(100/√n)
100/√n = 25/1.96 = 12.76
√n = 100/12.76 = 7.84
n = (7.84)^2 = 61.47

Therefore, the smallest sample size required is 62 seniors.
3 0
4 years ago
How do i express x^2-3x into the form of (x-m)^2+n. I will give brainliest to correct answer
mel-nik [20]

Step-by-step explanation:

let's simply do the multiplications and then compare with the original.

(x-m)² + n

right ?

or is it

{(x - m)}^{2 + n}

let's go for the first.

x² - 2mx + m² + n = x² - 3x

-2mx + m² + n = -3x

fun there we see two things :

-2m = -3

m = 3/2

and

m² + n = 0

(3/2)² = -n

9/4 = -n

n = -9/4

so our transformed expression looks like

(x - 3/2)² - 9/4

7 0
3 years ago
What is the slope of the line that contains these points?<br><br> X 5 6 7 8<br> Y -3 -1 1 3
castortr0y [4]

The slope of the line is 2.

<u>Step-by-step explanation:</u>

The given points are (5,-3) , (6,-1) , (7,1) , (8,3).

To find the slope of the line that contain these points is calculated by the slope formula.

Slope = (y2-y1) / (x2-x1)

Take any two points from the given set of points.

Let,

(x1,y1) = (5,-3)

(x2,y2) = (6,-1)

Slope = (-1+3) / (6-5) ⇒ 2

Therefore, the slope of the line is 2.

Similarly, the slope of the line can be known by using any two points on the line in the slope formula.

3 0
3 years ago
Umm hiii i need friends lol
Elis [28]

... me too. (╯▽╰ ) -O-

8 0
3 years ago
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