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ella [17]
1 year ago
9

the data in the table below represents a linear relationship . what is the missing piece of data table and answer choices will b

e in chatA) -6 B) -2 C) 2 D) 6

Mathematics
1 answer:
Gennadij [26K]1 year ago
3 0

C) 2

1) Given the table, let's find out that missing data picking 2 points (2,-10) and (6,-4)

Since we have the slope, let's work on finding the linear coefficient

plugging point (2,-10) into that:

y= mx +b

-10 =3/2(2) +b

-10 =6/2 +b

-10= 3 +b

-10-3 =b

b= -13

2) So the rule of that function is y= 3/2x -13

Plugging x= 10 we have

y= 3/2(10) -13

y=2

3) So the missing y-coordinate is 2.

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Specifications for an aircraft bolt require that the ultimate tensile strength be at least 18 kN. It is known that 10% of the bo
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Answer:

Mean strength is 18.94 and your standard deviation is 0.5.

So the proportion of bolts that meet the specifications is 97%.

Step-by-step explanation:

First of all determine the z- scores of these points.There are 10% of bolts with a strength less than 18.3 kN and this normally distributed you can use chart or calculator to calculate z-score. As i have 5% then z-score is -1.28.Then check the other 19.76kN then find that it has a z-score of 1.64.

To check the difference subtract 19.76 and 18.3 then you get 1.46.

Subtract z-scores 1.64 - (-1.28) = 2.92

Then standard deviation is 1.46/2.92 = 0.50

mean of the bolts is obtained by adding 1.28 *0.5 = 0.64 to 18.3 then

subtract 1.64 *0.5 = 0.82 to 19.76

Then mean is 18.94

Mean strength is 18.94 and your standard deviation is 0.5.

For strength specification. First, we find the z-score for this value:

(18-18.94)/0.5=-1.88

the probability of a bolt being made stronger than this z-score.It is approximately 0.97.

So the proportion of bolts that meet the specifications is 97%. .

3 0
3 years ago
PLEASE HELP IM BEGGING YOU!!! Team Integrity kids were supposed to go on a field trip to an ice rink. The cost was $12 per stude
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Manny has 48 feet of wood. He wants to use all of it to create a border around a garden. The equation 2l + 2w = 48 can be used t
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3 years ago
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Find the area of each figure. Round to the nearest tenth if necessary
Alenkinab [10]

Answer:

59.3

Step-by-step explanation:

First find the area of the the right triangles

5 * 4 / 2 = 10

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