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inn [45]
4 years ago
9

Find the common difference of the arthmetic sequence shown

Mathematics
1 answer:
SpyIntel [72]4 years ago
5 0
Where is it shown? Please show a picture
You might be interested in
PLEASE HELP!!!!!!!!!!!
devlian [24]

Answer:

I think it's 18

Step-by-step explanation:

because I'm looking at 12/8 to be a ratio, that means that the size of the bigger figure had decreased by 12/8 or 1.5

then I divided the 27 by 1.5 to get the area of the small one which was 18.

5 0
3 years ago
A psychologist wants to estimate the proportion of people in a population with IQ scores between 80 and 140. The IQ scores of th
ryzh [129]

Using the Empirical Rule, it is found that the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.

<h3>What does the Empirical Rule state?</h3>

It states that, for a normally distributed random variable:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of  the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

Considering the mean of 110 and the standard deviation of 15, we have that:

  • 80 = 110 - 2 x 15.
  • 140 = 110 + 2 x 15.

These values are both the most extreme within 2 standard deviations of the mean, hence the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.

More can be learned about the Empirical Rule at brainly.com/question/24537145

#SPJ1

7 0
2 years ago
*2. For each of the following discriminant state what it indicates about the number of
n200080 [17]

Answer:

b. b² - 4ac = 0

8 0
2 years ago
-2c-5c+8-4=53<br><br><br><br> I need answers to this asap I believe it’s -7
Elena-2011 [213]

Answer:

Yeah!!!you're right, it's -7

Step-by-step explanation:

-2c -5c+8-4 = 53

-7c +4 = 53

-7c = 53 - 4

-7c = 49

c = -7

6 0
3 years ago
Read 2 more answers
Help me on this question
Georgia [21]

Answer:

what's your questions

7 0
4 years ago
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