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Juli2301 [7.4K]
3 years ago
12

Multiply -9w(-3w^8) Simplify

Mathematics
1 answer:
andrezito [222]3 years ago
6 0

3^2w^9

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 0 -  (9w • (0 -  3w8))

Step  2  :

Multiplying exponential expressions :

2.1    w1 multiplied by w8 = w(1 + 8) = w9

Multiplying exponents :

2.2    32  multiplied by  31   = 3(2 + 1) = 33

Equation at the end of step  2  :

 0 -   -33w9

Step  3  :

Final result :

 33w9

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Answer:

more the z-score more will be the extreme. therefore tallest man has high extreme

Step-by-step explanation:

Formula for z-score: \frac{X-\mu }{\sigma}

where

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μ mean height

σ is standard deviation

z score for tallest is

z-score = \frac{ 262 - 175.32}{8.17} = 10.60

similarly for shortest man

z-score = \frac{68.6 - 175.32}{8.17} = - 13.06

more the z-score more will be the extreme. therefore tallest man has high extreme

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Step-by-step explanation:

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3 years ago
Paul owns a mobile wood-fired pizza oven operation. A couple of his clients complained about his dough at a recent catering, so
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Answer: B. Do not reject H0, we cannot conclude the proportion of customer complaints is more for the old dough

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for the old and the new dough players. The population proportions of customer complaints with the old and new dough would be p1 and p2

P1 - P2 = difference in the proportion of customer complaints with the old and new dough.

The null hypothesis is

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The alternative hypothesis is

Ha : p1 < p2

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it is a left tailed test

Sample proportion = x/n

Where

x represents number of success(number of complaints)

n represents number of samples

For old dough

x1 = 6

n1 = 385

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For new dough,

x2 = 16

n2 = 340

P2 = 16/340 = 0.047

The pooled proportion, pc is

pc = (x1 + x2)/(n1 + n2)

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z = (0.016 - 0.047)/√(0.03)(0.97)(1/385 + 1/340) = - 0.031/√0.00553857907

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should be 15...

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