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Juliette [100K]
2 years ago
9

If X || Y and Y || Z, then _____ A) A || B B) X || Z C) X⊥A D) A⊥Z

Mathematics
1 answer:
iris [78.8K]2 years ago
5 0

Answer:

B) X || Z

Step-by-step explanation:

Hope it helps you in your learning process.

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What is the slope of у= 3х — 9​
astra-53 [7]

Answer:

3?

Step-by-step explanation:

3 is the slope intercept I believe

8 0
2 years ago
Anyone good with slopes?
Zanzabum

Answer:

4

Step-by-step explanation:

4 0
3 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
Ana fue a comprar pan, compró 7 bolillos de $ 1.45, 3 panes de dulce de $ 7.60 y 4 panes de dulce de $ 8.40. ¿Cuánto pagó en tot
xz_007 [3.2K]

Answer:

$66.50

Step-by-step explanation:

Given that

she bought seven 1.45 rolls

Three 7.60 sweet loaves

and four 8.40 sweet rolls

We need to find out how much she paid in total

So,

= 7 × 1.45 + 3 × 7.60 + 4 × 8.40

= $10.15 + $22.80 + $33.60

= $66.50

Hence, she paid in total of $66.50

The same would be considered and relevant

6 0
2 years ago
Subtract 14 – (+9). Who will answer first......
Inga [223]

Answer:

5 isbthe answer to your question

8 0
2 years ago
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