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maksim [4K]
2 years ago
14

I need help hurry pls

Mathematics
2 answers:
yarga [219]2 years ago
7 0

Answer:

you got this Playa I believe in you

kap26 [50]2 years ago
3 0

Answer:   the first one 8.2   the second one  49.2

Step-by-step explanation:

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Which expression is equivalent to ^5 square root 13^3
joja [24]

Answer:

\sqrt[5]{13^3} = 13^{\frac{3}{5}}

Step-by-step explanation:

5 0
2 years ago
Given the equation y = 1/2 2x - 8, what is the slope and the y-intercept?
ki77a [65]
Assuming that the 1/2 is to be distributed; slope would be x or 1 and the y intercept would be -4
6 0
3 years ago
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Brainliest to correct answer please help
natka813 [3]

Answer:

55%

Step-by-step explanation:

Since 44/80 is 0.55*100 is 55%

Hope this helps !

Please mark as brainliest!

8 0
2 years ago
Large samples of women and men are​ obtained, and the hemoglobin level is measured in each subject. Here is the​ 95% confidence
qwelly [4]

Answer:

a) Because the confidence interval  does not include  0​ it appears that there

is  a significant difference between the mean level of hemoglobin in women and the mean level of hemoglobin in men.

b)There is​ 95% confidence that the interval from  −1.76 g/dL<μ1−μ2<−1.62 g/dL actually contains the value of the difference between the two population means μ1−μ2

c)   1.62 < μ1−μ2< 1.76

Step-by-step explanation:

a) What does the confidence interval suggest about equality of the mean hemoglobin level in women and the mean hemoglobin level in​ men?

Given:

95% confidence interval for the difference between the two population​ means:

−1.76g/dL< μ1−μ2 < −1.62g/dL

population 1 =  measures from women

population 2 =  measures from men

Solution:

a)

The given confidence interval has upper and lower bound of 1-62 and -1.76. This confidence interval does not contain 0. This shows that the population means difference is not likely to be 0. Thus the confidence interval implies that the mean hemoglobin level in women and the mean hemoglobin level in​ men is not equal and that the  women are likely to have less hemoglobin than men. This depicts that there is significant difference between mean hemoglobin level in women and the mean hemoglobin level in​ men.

b)  

There is​ 95% confidence that the interval −1.76 g/dL<μ1−μ2<−1.62 g/dL actually contains the value of the difference between the two population means μ1−μ2.

c)

If we interchange men and women then

  • confidence interval range sign will become positive.
  • μ1 becomes the population mean of the hemoglobin level in men
  • μ2 becomes the population mean of the hemoglobin level in women
  • So confidence interval becomes:

                                          1.62 g/dL<μ1−μ2<1.76 g/dL.

4 0
2 years ago
Rewrite the following phrase as a mathematical expression: twice a number increased by eighteen. 2n + 18 18n + 2 2 + 18 2(18n)
VladimirAG [237]
I am not sure about the last two phrases, but here's what I think.
2(n+18)
18(2+n)
3 0
2 years ago
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