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Softa [21]
3 years ago
13

(x+2)^6 using binomial theorem or Pascal’s triangle

Mathematics
1 answer:
zlopas [31]3 years ago
4 0

Answer:

x^6+2x^5+4x^4+8x^3+16x^2+32x+64

Step-by-step explanation:

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Valerie earns $24 per hour. Which expression can be used to show how much money she earns in 7 hours?
UkoKoshka [18]
The answer is B) (7x20) + (7x4)
7 0
3 years ago
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Tomorrow the last day of school how ya feel?<br> -franz:)
zheka24 [161]

Answer:

Ours is today. Feels weird how we came a long way with the pandemic presiding our academic studies.

Step-by-step explanation:

6 0
2 years ago
A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and has built 16 tires and test
frutty [35]

Answer:

The 95% confidence interval for mean tire life is between 52,368.4 kilometers and 67,911 kilometers.

Step-by-step explanation:

We are in posession of the sample's standard deviation, so we use the students 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 = 16 - 1 = 15

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.68

The margin of error is:

M = T*s = 2.1315*3645.94 = 7771.3

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 60139.7 - 7771.3 = 52,368.4.

The upper end of the interval is the sample mean added to M. So it is 60139.7 + 7771.3 = 67,911.

The 95% confidence interval for mean tire life is between 52,368.4 kilometers and 67,911 kilometers.

3 0
3 years ago
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Which of the following explains the relationship between angles B and C? Lines JK and JM intersect at point J, creating four ang
zhenek [66]

Answer:

Adjacent angles

4 0
3 years ago
Read 2 more answers
What do I do on this?
stiks02 [169]
All you do is measure it with a ruler and for every 1 cm you get multiply it by 8.5ft. 
so for example if you got 6cm then you would multiply it by 8.5ft and your answer would be 51ft.
4 0
3 years ago
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