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lawyer [7]
3 years ago
6

Please help me !!!!!!!!!!!!!!

Mathematics
1 answer:
Scrat [10]3 years ago
7 0

Answer:

- 2.2 \times ( - 5 \frac{1}{2} ) \\  -  \frac{22}{10} ( - 5 \frac{1}{2} ) \\  -  \frac{2 \times 11}{2 \times 5} ( -   \frac{5 }{2}  ) \\  -  \frac{11}{5} ( -  \frac{5}{2} )

So the answer is

-  \frac{11}{5} ( -  \frac{5}{2} )

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Multiply (3x-7)(2x^2-8x+3)
xxTIMURxx [149]

Answer:

6x^3-38x^2+65x-21

Step-by-step explanation:

4 0
3 years ago
Suppose that your business is operating at the 4.5-Sigma quality level. If projects have an average improvement rate of 50% annu
Luda [366]

Answer:

  11.75 years

Step-by-step explanation:

If we ignore the fact that "6-sigma" quality means the error rate corresponds to about -4.5σ (3.4 ppm) and simply go with ...

  P(z ≤ -6) ≈ 9.86588×10^-10

and

  P(z ≤ -4.5) ≈ 3.39767×10^-6

the ratio of these error rates is about 0.000290372. We're multiplying the error rate by 0.5 each year, so we want to find the power of 0.50 that gives this value:

  0.50^t = 0.000290372

  t·log(0.50) = log(0.00290372) . . . . take logarithms

  t = log(0.000290372)/log(0.50) ≈ -3.537045/-0.301030

  t ≈ 11.75

It will take about 11.75 years to achieve Six Sigma quality (0.99 ppb error rate).

_____

<em>Comment on Six Sigma</em>

A 3.4 ppm error rate is customarily associated with "Six Sigma" quality. It assumes that the process may have an offset from the mean of up to 1.5 sigma, so the "six sigma" error rate is P(z ≤ (1.5 -6)) = P(z ≤ -4.5) ≈ 3.4·10^-6.

Using that same criteria for the "4.5-Sigma" quality level, we find that error rate to be P(z ≤ (1.5 -4.5)) = P(z ≤ -3) ≈ 1.35·10^-3.

Then the improvement ratio needs to be only 0.00251699, and it will take only about ...

  t ≈ log(0.00251699)/log(0.5) ≈ 8.6 . . . . years

5 0
3 years ago
Marking brainliest right away!!!!
GarryVolchara [31]

Answer:

(-3,-1)

Step-by-step explanation:

When you graph it on a graphing paper, you can see that the graph touches it but barely

4 0
3 years ago
Write x2 − 8x + 13 = 0 in the form (x − a)2 = b, where a and b are integers
Marrrta [24]
X^2 - 8x + 13 = 0
subtract 13 from both sides
x^2 - 8x = -13
-8/2 = -4,   (-4)^2 = 16,  add 16 to both sides
x^2 - 8x + 16 = -13 + 16
factor the left side
(x - 4)^2 = 3
3 0
3 years ago
Hey could you help me<br> Estimate<br> 754÷12
storchak [24]

Your answer is 62.8

Have a good day

3 0
2 years ago
Read 2 more answers
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