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ahrayia [7]
3 years ago
14

HELP I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Maksim231197 [3]3 years ago
3 0

Answer: D

Step-by-step explanation:

-4 < -w

w > -4

Since it doesn't have an equal sign, its an open circle. Since its greater than -4, it is going to the right, so shade right.

Answer is D

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Which polynomial is prime?<br><br> x2 – 36<br> x2 + 16<br> x2 – 7x + 12<br> x2 – x – 20
juin [17]

Answer:

x2 - 7x + 12

Step-by-step explanation:

ℎ

3 0
3 years ago
Read 2 more answers
What is the answer of 2×82
slamgirl [31]
The answer to this problem is 164.

Hope this answer helps! feel free to ask any additional questions :)
8 0
3 years ago
Rewa Delta Union Rugby CEO has become concerned about the slow pace of the rugby games played in the current union rugby, fearin
ozzi

Answer:

We conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

Step-by-step explanation:

We are given that Before the meeting, the mean duration of the 15-sided rugby game time was 3 hours, 5 minutes, that is, 185 minutes.

A random sample of 36 of the 15-sided rugby games after the meeting showed a mean of 179 minutes with a standard deviation of 12 minutes.

Let \mu = <em><u>mean duration of 15-sided union rugby games after the meeting.</u></em>

So, Null Hypothesis, H_0 : \mu \geq 185 minutes      {means that the mean duration of 15-sided union rugby games has increased or remained same after the meeting}

Alternate Hypothesis, H_A : \mu < 185 minutes     {means that the mean duration of 15-sided union rugby games has decreased after the meeting}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                            T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean duration of 15-sided union rugby games = 179 min

            s = sample standard deviation = 12 minutes

            n = sample of 15-sided rugby games = 36

So, <u><em>the test statistics</em></u>  =  \frac{179-185}{\frac{12}{\sqrt{36} } }  ~ t_3_5

                                       =  -3

The value of t test statistics is -3.

<u>Now, at 1% significance level the t table gives critical value of -2.437 at 35 degree of freedom for left-tailed test.</u>

Since our test statistic is less than the critical value of t as -3 < -2.437, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

6 0
3 years ago
Which of the following ratios are equivalent ratios to 12:14?
sweet [91]

Answer:

a and c

Step-by-step explanation:

a: when you divide 12:14 by 2 itll give you half of each number. that equals 6:7

c: when you multiply 12:14 by 2 itll give you twice the amount which is 24:28

3 0
3 years ago
Read 2 more answers
-the equations x-y=-14 and -x-y=14 what is the number of solutions? A.) no solutions B.) infinitely many solutions C.) one solut
Yuki888 [10]

Answer:

The answer is C one solution

Step-by-step explanation:

x-y=-14

-y=-x-14  bring x to the other side

y=x+14   divide everything by -1

-x-y=14

-y=x+14  bring x to the other side

y=-x-14  divide everything by -1



6 0
3 years ago
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