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quester [9]
3 years ago
12

12x=9y+27 in slope intercept form with work

Mathematics
1 answer:
arsen [322]3 years ago
8 0
-8 I believe is the answer
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The table shows the shipping costs for items of different values. A 2-column table with 4 rows. The first column is labeled tota
Lisa [10]

A strong positive correlation.

Step-by-step explanation:

The question requires you to calculate the correlation coefficient and then make a conclusion about its value.

Form a table as shown where x is cost of items and y is shipping cost

x               y           xy                   x²         y²

25           5.99       149.8          625         35.9

45            8.99       404.6       2025        80.8

50            8.99      449.5         2500       80.8

70            10.99      769.3         4900       120.8

190           34.96     1773.2        10050      318.3 ------sum

The formula for correlation coefficient follows;

r=n(∑xy)-(∑x)(∑y) ÷ √{[n∑x²-(x)²] [n∑y²-(y)²]}

where n=4

r=4(1773.2)-(190)(34.96) ÷ √{[4(10050)-190²] [4(318.3)-34.96²]}

r=450÷ √{4100*51)

r=450÷√209100

r=450÷457.3

r=0.98409

The value of r indicates a stronger positive correlation

Learn More

Correlation coefficient :brainly.com/question/12528676

Keywords :shipping costs,cost of items, strength of the model

#LearnwithBrainly

4 0
4 years ago
Read 2 more answers
What are the values of M and theta in the diagram below
Montano1993 [528]

Answer:

The correct answer is m=\frac{\sqrt{3} }{2} and θ = 30º.

Step-by-step explanation:

First, we must form a triangle whose hypotenuse is the radius r=1, its adjacent leg is m, its opposite leg is \frac{1}{2} and the angle is theta.

First, we calculate the angle with theta's breast:

sin (θ) = \frac{\frac{1}{2} }{H}

where H is the hypotenuse, in this case, the radio.

θ = sin^{-1} (\frac{\frac{1}{2} }{1})

θ = 30º

Now, we calculate the adjacent leg, which is equal to the x-coordinate of the point:

cos (θ) = \frac{m}{H}

m = cos 30º * H

m = \frac{\frac{\sqrt{3} }{2} }{1}

m = \frac{\sqrt{3} }{2}

Have a nice day!

3 0
3 years ago
Read 2 more answers
An elephant can run 1/4 of a mile in 36 seconds. At this rate, which expression can be used to determine how fast an elephant ru
Naily [24]
25 miles per hour....
8 0
3 years ago
Read 2 more answers
Solve the order of PEMDAS<br> 25-16 divided by 2 to the power of three-5+3
irina [24]
25 - 16 / 2^3 - 5 + 3
Start off by putting 2 to the third power to get 8. Then divide 16 by 8 to get 2. 25-2=23-5=18+3=21
7 0
3 years ago
What is the slope ?!!
Svet_ta [14]

Answer:

The slope is 1/2

Step-by-step explanation:

4 0
4 years ago
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