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stiks02 [169]
3 years ago
14

1.y-y1=m(x-X1) 2. Find slope between (1,3) and (5,1) Y1-Y2 X1-X2 Y-3 =

Mathematics
1 answer:
Rufina [12.5K]3 years ago
7 0
Slope= Y2-Y1/X2-X1
1-3/5-1
-2/4
-1/2= slope
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Silicon wafers are scored and then broken into the many small microchips that will he mounted into circuits. Two breaking method
antoniya [11.8K]

Answer:

a

The estimate is  - 0.0265\le  K \le  0.0465

b

Method B this is because the faulty breaks are less

Step-by-step explanation:

The number of microchips broken in method A is  n_1 = 400

The number of faulty breaks of method A is  X_1 = 32

 The number of microchips broken in method B is  n_2  = 400

 The number of faulty breaks of method A is  X_2 = 32

  The proportion of the faulty breaks to the total breaks in method A is

       p_1 = \frac{32}{400}

      p_1 = 0.08

 The proportion of the faulty to the total breaks in method B is

      p_2 =  \frac{28}{400}

     p_2 =  0.07

For this estimation the standard error is  

      SE =  \sqrt{ \frac{p_1 (1 - p_1)}{n_1}  + \frac{p_2 (1- p_2 )}{n_2} } }

  substituting values

       SE =  \sqrt{ \frac{0.08 (1 - 0.08)}{400}  + \frac{0.07 (1- 0.07 )}{400} } }

      SE = 0.0186

The z-values of confidence coefficient of 0.95 from the z-table is  

       z_{0.95} =  1.96

The difference between proportions of improperly broken microchips for the two breaking methods is mathematically represented as

        K = [p_1 - p_2 ] \pm z_{0.95} * SE

substituting values

        K = [0.08 - 0.07 ] \pm 1.96 *0.0186

         K  =  - 0.0265 \ or  \ K  =  0.0465

The interval of the difference between proportions of improperly broken microchips for the two breaking methods is  

      - 0.0265\le  K \le  0.0465

3 0
3 years ago
What is the median of the lower half of the data 5,8,10,1,7,6,15,8,6
Degger [83]
I’m think it is the median
5 0
3 years ago
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PLEASE HELP!!!!!<br> What is the value of x? *<br> 31°<br> 53°
IgorC [24]

Answer:

X = 96

Step-by-step explanation:

This one is pretty simple

So we're dealing with angles here.

So what we want to do is add the two angles and it =180

Here's the equation so it makes more sense:

A+B=180

so we'd place in those numbers

53+31=180

add the two angles together

53+31=84

than we'd subtract from 180 getting the value of X

180-84=96

x=96

3 0
2 years ago
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Use the expression below to answer the following questions.
PilotLPTM [1.2K]

Answer:

There are 2 terms in 9x+3

One is 9x and another is 3

As having 2 terms it is known as binomial .

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3 years ago
Eleanor placed some marbles in a bag for an experiment. She reaches into the bag and grabs a marble. Eleanor writes down the col
rodikova [14]

Answer:

Hi I have this same question but I'm torn between certain and very likely it is on of those options.

Step-by-step explanation:

6 0
3 years ago
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