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Zinaida [17]
3 years ago
10

HELP ME WITH MATH ANGLES PLEASE BRAINLIST

Mathematics
1 answer:
mamaluj [8]3 years ago
6 0

the second slide is A. 22

and the last one is x=81    z=99  and y=68

hope this helps

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Find the critical value of x2 based on the given information H1 >3.5 n=14 a=0.05
egoroff_w [7]

Answer:

The degrees of freedom are given by:

df = n-1=14-1=13

The significance level is \alpha=0.05 and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:

\chi^2_{\alpha}= 22.362

And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

Step-by-step explanation:

We have the followign system of hypothesis:

Null hypothesis: \sigma^2 \leq 3.5

Alternative hypothesis: \sigma^2 >3.5

The degrees of freedom are given by:

df = n-1=14-1=13

The significance level is \alpha=0.05 and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:

\chi^2_{\alpha}= 22.362

And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

4 0
3 years ago
Which of the following pairs of fractions are equivalent?
AlekseyPX
D: 1/6 * 2 = 2/12

hope this helps :) (please mark brainliest!)
3 0
3 years ago
If 6 cubes with an edge length of 14 can fit the height of the prism, what is the height of the prism? Enter the missing part of
Paha777 [63]

Answer: 84\ \text{units}

Step-by-step explanation:

Given

The length of each cube is a=14\ \text{units}

If there are 6 cubes placed over each other, then the height achieved by the cubes is

\Rightarrow 6\times 14\\\Rightarrow 84\ \text{units}

7 0
3 years ago
In an old story, a man puts 2 grains of rice on the first space of a chess board. He puts 4 grains on the second space, 8 grains
denis23 [38]
We know that
a1----------> <span>grains of rice in the first square
a1=2
n------------> space ubication
the expressions  is
 an=a1</span>^n----------> an=2<span>^n

for the </span><span>the tenth space  n=10
</span>an=2^10---------> an=1024 grains of rice

the answer is
1024 grains of rice

5 0
3 years ago
Read 2 more answers
What is estimate of 1/8+1/4=
Cloud [144]
3/8
1/4=2/8 so 1/8 + 2/8 is 3/8
5 0
3 years ago
Read 2 more answers
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