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gavmur [86]
2 years ago
12

Wich phrase represents this expression 7x4+3

Mathematics
1 answer:
BabaBlast [244]2 years ago
5 0

Answer: 3y+7x=4.

Step-by-step explanation: took the test

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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
When Ryan started a daily exercise routine, he lost
Delicious77 [7]
Take his now weight which is 180.4. Divide it by 0.82 because 18% off is 82%. So 180.4/0.82= 220 pounds
7 0
3 years ago
Help omg I’m struggling ‍
Harrizon [31]
I believe the answer would b y^2 x^3•12/10
7 0
2 years ago
How do i answer this question 5*(8-4)/4-2
NemiM [27]

the answer is 3

but a way to work these problems out is to use PEMDAS

p-parentheses

e-exponent

m-multiplication

d-division

a-addition

s-subtraction

they  have to be donr in that order or the answer will come out different  

6 0
3 years ago
A car travels 320 miles on 15 gasoline. The best estimate if the cars mile per gallon is
Dovator [93]

Answer:

21.333 miles per gallon

Step-by-step explanation:

3 0
3 years ago
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