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Svet_ta [14]
3 years ago
13

What is the answer to 9×

xFormula1" title="9x {}^{2} + 7x - 2from8x - 10" alt="9x {}^{2} + 7x - 2from8x - 10" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

81x^2+7x-16x-10

81x^2-9x-10

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Answer:

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3 years ago
397 of 514 randomly selected U.S. adults interviewed said they would not be bothered if the National Security Agency collected r
Afina-wow [57]

Answer:

z=14.73

p=0.000

for 99% confidence level the null hypothesis is rejected, thus majority of us adults would not bothered if the NSA collected personal records.

Step-by-step explanation:

H_{0}: Half of US adults would not bothered if the NSA collect records of personal telephone calls

H_{A}: Majority of the adults would not bothered if the NSA collect records of personal telephone calls

According to the sample, z-value can be found using the formula:

z=\frac{X-M}{\sqrt{n*p*(1-p)} } where

  • X is the adults, who would not be bothered in the survey (397)
  • M is the mean of the distribution of null hypothesis (257)
  • n is the sample size (514)
  • p is the proportion of the sample, who said they would not bothered ( \frac{397}{514} ≈ 0.77)

Putting these numbers in the formula,

z=14.73  and corresponding p value is p≈0.000

Since p<0.01,  for 99% confidence level we reject the null hypothesis, thus majority of us adults would not bothered if the NSA collected personal records.

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Name of polygon by using 3 rhombus
Mrrafil [7]
Squares, rectangles, and parallelograms.
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Need a quick answer, am I right if not what would be the correct answer?
vladimir2022 [97]

Answer:

Im thinking the value of -12 is -12

Step-by-step explanation:


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Read 2 more answers
12. What percent of 60 is 12? Show your work.
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20\100 x 60=12
answer=20
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