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In-s [12.5K]
3 years ago
5

Brainliest if correct

Mathematics
2 answers:
Nataly_w [17]3 years ago
7 0

Answer:

2/13

Step-by-step explanation:

Possible outcomes 52

favorable outcomes 8

8/52=2/13

kvv77 [185]3 years ago
4 0

Answer:

2/13

Step-by-step explanation:

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Find the intercepts to graph the line. <br> 4x−y=−4
Murljashka [212]

Answer:

X intercept is -1

Y intercept is 4

Step-by-step explanation:

The intercepts are when the line goes through the x axis or when

the line goes through the y axis.

7 0
3 years ago
Simplify the expression 1.5y2+6.3+6y-3.9-4y+y2​
Lena [83]

Answer: 2.5y^{2} +2y+2.4

Step-by-step explanation:

8 0
3 years ago
The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces. We are interested in testing to d
NikAS [45]

Answer:

Option b. should not be rejected

Step-by-step explanation:

We are given that the contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces.

We have to test whether the variance of the population is significantly more than 0.003, i.e.;

  Null Hypothesis, H_0 : \sigma = \sqrt{0.003}

Alternate Hypothesis, H_1 : \sigma > \sqrt{0.003}

The test statistics used here for testing variance is;

          T.S. = \frac{(n-1)s^{2} }{\sigma^{2} } ~ \chi^{2}__n_-_1

where, s = sample standard deviation = 0.06

           n = sample size = 26 cans

So, Test statistics = \frac{(26-1)0.06^{2} }{0.003 } ~ \chi^{2}__2_5

                            = 30

So, at 5% level of significance chi square table gives critical value of 37.65 at 25 degree of freedom. Since our test statistics is less than the critical so we have insufficient evidence to reject null hypothesis.

Therefore, we conclude that null hypothesis should not be rejected and variance of population is 0.003.

5 0
3 years ago
Thom earns $12.40 per hour at the
kogti [31]

Answer:

$3,645.6

Step-by-step explanation:

1hr=$12.4

42hrs=x

x=$520.8×7 =$3,645.6

7 0
3 years ago
please help! 20 points. if you guess or just comment to take points i will make sure ur account gets banned, thanks! i want a si
alina1380 [7]

Answer: x=15

Step-by-step explanation: Since 3x+5 is equal to 50, you can write 3x+5=50, and 3x=45, x=15.

7 0
3 years ago
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