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Leokris [45]
3 years ago
14

What is the value of 6n-2

Mathematics
1 answer:
ad-work [718]3 years ago
5 0
<span>Factor <span><span>6n</span>−2
</span></span><span><span>6n</span>−2
</span><span>=<span>2<span>(<span><span>3n</span>−1</span>)
</span></span></span><u>Answer: </u><span>2<span>(<span><span>3n</span>−1</span><span>)</span></span></span>
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In a laboratory, 3 technicians are analyzing the active ingredient in the product vials. Amir, Betty, and Carlos analyze 0.55, 0
AlladinOne [14]

Answer:

The probability is    P(C | I) =  0.025    

Step-by-step explanation:

From the question we are told that

      The  proportion analyzed by  Amir is  P(A) =  0.55

      The proportion analyzed by  Betty is  P(B)  =  0.30

     The  proportion analyzed by  Carlos is  P(C) =  0.15

     The inaccuracy by  Amir  is   p = 0.6% =  0.006

     The inaccuracy by  Betty  is  b = 0.4% = 0.004

    The inaccuracy by  Carlos  is c = 0.1% =  0.001

Generally the probability of inaccurate analysis is mathematically represented as

     P(I) =  P(A) *  p  +  P(B) *  b  +  P(C) *  c

=>  P(I) =  0.55 * 0.006  +  0.30  *  0.004  +  0.15  *  0.001

=>  P(I) =  0.006

Generally the probability that an inaccurate analysis, detected at final verification, was conducted by Carlos is mathematically represented as

       P(C | I ) =  \frac{P(C) *  c}{P(I)}

=>     P(C | I) =  \frac{   0.15  *  0.001}{ 0.006}

=>     P(C | I) =  0.025    

3 0
4 years ago
6) Evaluate 3/4x if X = -1/4
marysya [2.9K]

Answer: -\frac{3}{16}

Step-by-step explanation:

\frac{3}{4}(-\frac{1}{4} )

multiply the numberator and denominator:

3*-1 = -3

and

4*4 = 16 so,

-\frac{3}{16}  is the answer

7 0
2 years ago
Read 2 more answers
Solve the system by substitution <br><br> 2x + 10y = -32<br><br> x = -9y
kolezko [41]

Answer:

y=4

Step-by-step explanation:

2(-9y)+10y=-32

-18y+10y=-32

-8y/-8 = -32/-8

y=4

8 0
3 years ago
Read 2 more answers
A chapter in a book begins on page 144 and ends on page 869. How many pages are in the chapter?
trasher [3.6K]

725 because 869-144 woul d be the amount in the chapter
4 0
3 years ago
I don’t know how to do this because my teacher doesn’t teach us anything.
jek_recluse [69]

Answer: Choice D)

He needs to square each deviation in the numerator.

==========================================================

Explanation:

The sample standard deviation involves these steps

  1. Find the sample mean xbar.
  2. Subtract the xbar value from each data point. This gets us the list of deviations or how far each person is from the mean.
  3. Square each difference in the previous step
  4. Add up the squares from step 3. This is referred to as the Sum of the Squared Errors (SSE)
  5. Divide the SSE over n-1. If Toby was doing a population standard deviation, then he'd divide over n instead of n-1. However in much of statistics, we don't know much about a population and instead rely on sample statistics.
  6. The result of step 5 gets the variance. Apply the square root to the variance to get the standard deviation.

The step 3 highlighted in bold is where Toby made an error. He subtracted xbar from each person correctly, but forgot to square those deviations. The squaring is done to ensure we don't have any negative deviations.

This is what his work should look like when calculating the sample standard deviation

s = \sqrt{\frac{(6-7)^2 + (5-7)^2 + (9-7)^2 + (8-7)^2}{3}}

6 0
2 years ago
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