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3 years ago

Line l contains points (-2,0) and (4,8). point P has coordinates (5,1)

Mathematics

1 answer:

madreJ [45]3 years ago

6 0

What's the question tho

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A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft drink. A random sample of 49

grandymaker [24]

Answer:

yes

Step-by-step explanation:

4 0

4 years ago

Is this true or false?????????

krok68 [10]

You marked the right answer. It is true. XD

8 0

3 years ago

I have 6 feet of licorice and I want to share it with my friends. If each person gets

padilas [110]

Answer:9 people

Step-by-step explanation:

6/3/2= 6x3/2 =9.

7 0

4 years ago

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the fol

uysha [10]

Answer:

$(9-8) -2.02 \sqrt{\frac{2^2}{25} +\frac{1^2}{20}}= 0.0743$

$(9-8) +2.02 \sqrt{\frac{2^2}{25} +\frac{1^2}{20}}= 1.926$

And we are 9% confidence that the true mean for the difference of the population means is given by:

$0.0743 \leq \mu_1 -\mu_2 \leq 1.926$

Step-by-step explanation:

For this problem we have the following data given:

$\bar X_1 = 9$ represent the sample mean for one of the departments

$\bar X_2 = 8$ represent the sample mean for the other department

$n_1 = 25$ represent the sample size for the first group

$n_2 = 20$ represent the sample size for the second group

$s_1 = 2$ represent the deviation for the first group

$s_2 =1$ represent the deviation for the second group

Confidence interval

The confidence interval for the difference in the true means is given by:

$(\bar X_1 -\bar X_2) \pm t_{\alpha/2} \sqrt{\frac{s^2_1}{n_1}+\frac{s^2_2}{n_2}}$

The confidence given is 95% or 9.5, then the significance level is $\alpha=0.05$ and $\alpha/2 =0.025$ . The degrees of freedom are given by:

$df=n_1 +n_2 -2= 20+25-2= 43$

And the critical value for this case is $t_{\alpha/2}=2.02$

And replacing we got:

$(9-8) -2.02 \sqrt{\frac{2^2}{25} +\frac{1^2}{20}}= 0.0743$

$(9-8) +2.02 \sqrt{\frac{2^2}{25} +\frac{1^2}{20}}= 1.926$

And we are 9% confidence that the true mean for the difference of the population means is given by:

$0.0743 \leq \mu_1 -\mu_2 \leq 1.926$

4 0

3 years ago

PLEASE HELP ME I WILL MARK AS BRAINLIEST ANSWER

mixas84 [53]

Answer:

The answer is 264

Step-by-step explanation:

We start with a ratio of inches to miles- 6:12

we see that it can be simplified to 1:2

if we see that on the map it is 22in, 22:?

we got 1 to 22 by multiplying 1*22=22

do the same to the 12: 12*22=264

7 0

4 years ago