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2 years ago

Write the equation of the line that passes through the points (-4,-4) and (6,3).

Mathematics

1 answer:

Phantasy [73]2 years ago

6 0

I hope this helps I took both of the points and used the slope formula to get my slope which is 7/10 then I took any point from those two then I plugged it in to get the point slope form

Answer: y-3=7/10(x-6)

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The regular price of a pair of sneakers is $65. They are on sale for 20% off. What is the sale price?

Fofino [41]

65*0.20=13 (0.20 because 20/100=20% is 0.20 in decimal form)
65-13=52

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2 years ago

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A weather forecaster predicts that there is a 45% probability of snow today. What is the probability that it will not snow?

Ilia_Sergeevich [38]

55% if the percent is out of 100%. in which most weather statisics are out of 100. in which you take 100-45= giving you 55%

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2 years ago

Solve the inequality and write the solution in interval notation:<br> k/-12 ≤ 15.

natali 33 [55]

Remember when solving inequalities the sign of your inequality reverses when dividing or multiplying negative values. k/-12<15. k>-180 [-180, positive infinity)

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2 years ago

Et aussi surtout : (4-√2)(4+√2)

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

J'espère que cela t'aides! si c'est le cas, puis-je avoir un brainliest ?

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2 years ago

In March 2015, a Nielsen global online survey "found that consumers are increasingly willing to pay more for socially responsibl

Veseljchak [2.6K]

Answer:

For this case the parameter of interest is given by:

$p$ who represent the true proportion of respondents said that they were willing to pay more for products and services from companies who are committed to positive social and environmental impact

For this case we have an estimation given for this parameter. The estimation comes from a sample of 30000 people selected in 60 countries and they got:

$\hat p = 0.66$

This value represent the best estimator for the true proportion since is an unbiased estimator of the real parameter:

$E(\hat p) = p$

Step-by-step explanation:

For this case the parameter of interest is given by:

$p$ who represent the true proportion of respondents said that they were willing to pay more for products and services from companies who are committed to positive social and environmental impact

For this case we have an estimation given for this parameter. The estimation comes from a sample of 30000 people selected in 60 countries and they got:

$\hat p = 0.66$

This value represent the best estimator for the true proportion since is an unbiased estimator of the real parameter:

$E(\hat p) = p$

For this case if we want to test if the population proportion is equal to an specified value we can use the one sample z test for a proportion:

Null hypothesis: $p=p_0$

Alternative hypothesis: $p \neq p_o$

When we conduct a proportion test we need to use the z statisitc, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

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2 years ago