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Aliun [14]
3 years ago
13

Helppppp meeee pleassseee

Mathematics
1 answer:
aleksley [76]3 years ago
4 0

Answer:

it is b

Step-by-step explanation:

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If one leg of a 45-45-90 triangle is 12 cm, find the length of the hypotenuse.
Finger [1]

It’s the third one C)

7 0
3 years ago
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Jason wants to perform a two-tailed test for equality between two independent sample proportions. Each sample has at least 10 "s
Volgvan

Answer:

0.149

Step-by-step explanation:

Given that Jason wants to perform a two-tailed test for equality between two independent sample proportions

Each sample has at least 10 "successes" and 10 "failures."

Jason's test statistic is -1.44

Since here proportions are tested Z test might have been used.

Z statistic = -1.44

We can get p value for this Z statistic

p value=0.149

p value for two tailed is 0.149

Comparing this with t statistic we can decide whether to accept or reject null hypothesis.

6 0
3 years ago
Sixty-five percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly sele
Serhud [2]

Answer:

The outcomes of this binomial distribution that would be considered unusual is {0, 1, 2, 8}.

Step-by-step explanation:

The outcomes provided are:

(A) 0, 1, 2, 6, 7, 8

(B) 0, 1, 2, 7, 8

(C) 0, 1, 7, 8

(D) 0, 1, 2, 8

Solution:

The random variable <em>X</em> can be defined as the number of employees who judge their co-workers by cleanliness.

The probability of <em>X</em> is:

P (X) = 0.65

The number of employees selected is:

<em>n</em> = 8

An unusual outcome, in probability theory, has a probability of occurrence less than or equal to 0.05.

Since outcomes 0 and 1 are contained in all the options, we will check for <em>X</em> = 2.

Compute the value of P (X = 2) as follows:

P(X=2)={8\choose 2}(0.65)^{2}(0.35)^{8-2}

                =28\times 0.4225\times 0.001838265625\\=0.02175\\\approx 0.022

So <em>X</em> = 2 is unusual.

Similarly check for X = 6, 7 and 8.

P (X = 6) = 0.2587 > 0.05

X = 6 not unusual

P (X = 7) = 0.1373 > 0.05

X = 7 not unusual

P (X = 8) = 0.0319

X = 8 is unusual.

Thus, the outcomes of this binomial distribution that would be considered unusual is {0, 1, 2, 8}.

3 0
3 years ago
I need help woth question and my test
Maksim231197 [3]

Answer:

28.26 cm^2

Step-by-step explanation:

The area of the quarter circle is the area of the circle / 4. Thus, the area is \frac{\pi r^2}{4} = \frac{3.14*6^2}{4} = 28.26 square centimeters

8 0
2 years ago
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&lt;1 and &lt;2 are ____ angles
Tanya [424]

Answer:

supplementary

Step-by-step explanation:

3 0
3 years ago
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