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Ksenya-84 [330]
3 years ago
7

The sum of 5 consecutive integers is 505. what is the third number in this sequence

Mathematics
2 answers:
maxonik [38]3 years ago
6 0

The answer is 101. The number 505 can be divided into 5 different sums and 101 is the third number.

madreJ [45]3 years ago
3 0
The five numbers are 99,100,101,102,103. Therefore 101 is the third number.
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A real estate agent sold a house for $718,000. He makes a 5.5% commission. How much did he make?
podryga [215]

Answer:

$39490

Step-by-step explanation:

0.055 × 718000 = $39490

5 0
2 years ago
6^2-3^4 divided by 3^4
DerKrebs [107]

Answer:

35

Step-by-step explanation:

6^2 - 3^4 / 3^4

<em>Evaluate The Power</em>

36 - 3^4 / 3^4

<em>Any Expression Divided By Itself Is 1</em>

36 -1

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6 0
3 years ago
An environmental scientist wants to use a 95% confidence interval to estimate the mean number of hours per day her solar panel r
MissTica

Answer:

a) The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

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 = 48 - 1 = 47

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 47 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0117

The margin of error is:

M = T*s = 2.0117*2.3 = 4.6

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 7.1 - 4.6 = 2.5 hours of sunlight per day

The upper end of the interval is the sample mean added to M. So it is 7.1 + 4.6 = 11.7 hours of sunlight per day

a) Compute the 95% confidence interval for the mean.

The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) Explain your confidence interval from part (a) in context.

The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

6 0
3 years ago
2×-y when ×= when 5 and y=12
Damm [24]

25-12=13 because if x=5 and y=12 just replace the letters with the numbers. Hope it helps mate

6 0
3 years ago
Read 2 more answers
A number with one or more digits to the right of a decimal point is called a
stira [4]
It's called a decimal.
I hope it helps.
5 0
3 years ago
Read 2 more answers
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