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kherson [118]
3 years ago
10

In which order do these have to be? 1-3? Please help!!

Mathematics
2 answers:
Law Incorporation [45]3 years ago
6 0

Answer:

dont know.

Step-by-step explanation:

natita [175]3 years ago
6 0
It looks like it’s already in order, first you subtract the x in the right so it’s 6x, then subtract 4 from 10 so 6 and then divide by 6
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An electronics company just finished designing a new tablet computer and is interested in estimating its battery-life. A random
Alika [10]

Answer:

6 \pm 2.861(0.3354)

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 20 - 1 = 19

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.861.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.861\frac{1.5}{\sqrt{20}} = 2.861(0.3354)

In which s is the standard deviation of the sample and n is the size of the sample.

The format of the confidence interval is:

S_{M} \pm M

In which S_{M} is the sample mean

So

6 \pm 2.861(0.3354)

7 0
3 years ago
jen makes necklaces by stringing different color beads. each necklace is 18 inches long. jen has an 86 inch length of beaded str
balandron [24]
She can make only four necklaces:


86/18 = 4.77777


but that .7777 wont make a whole necklace so she can only make 4 full necklaces
8 0
3 years ago
Alvin is comparing the cost of music downloads from three websites
blondinia [14]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Alex has 209 coins. Of the coins, 5/11 are nickels, 5/11 are dimes, and rest are quarters. What is the ratio of Alex’s nickels t
vodka [1.7K]

Answer:

95:95:19

Step-by-step explanation:

1.Divide 209 by 11.(209÷19)

2.Multiply 19×5 since 5/11 of the coins are nickels.(19×5=95)

3.Multiply 19×5 again since 5/11 of the coins are dimes.(19×5=95)

4.Multiply 19×1 since there would be 1/11 left of the coins which are quarters. (19×1=19)

5.Check your awnser by adding 95+95+19.(95+95+19=209)

4 0
3 years ago
Simplify <br>(sinA +cosA) (sinA-cosA) ​
kvv77 [185]

Answer:

-cos(2A)

Step-by-step explanation:

We know that (a+b) (a-b) = a^2-b^2

So it means we can simplify to sin^2(A)-cos^2(A) and we know cos^2(A) - sin^2(A) = cos(2A) but we will just multiply by -1 and we get - cos(2A)

5 0
3 years ago
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