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ddd [48]
3 years ago
13

Which of the following is an arithmetic sequence?

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0
Answer: Only the second sequence is arithmetic. 

Work:
An arithmetic sequence is a sequence in which there is a common value added or subtracted between each term in the sequence. 
The first option, -2, 4, -6, 8,... is not arithmetic because the terms switch back and forth between positive and negative signs meaning that there is no common value that can be added between each term. 
The second option, -8, -6, -4, -2,... is arithmetic because there is a common difference between each term which is +2.
The third option, 2, 4, 8, 16,... is not arithmetic but is, in fact, geometric. There is no common value that is added or subtracted between each term. 
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Answer:

320 miler in 4 hours

Step-by-step explanation:

You multiply 80 by four because the police car travels 80 miles an hour, so in four hours it would travel 80 x 4 = 320

3 0
3 years ago
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.Here is a 90% confidence interval estimate of theproportion of adults who say that thelaw goes easy on celebrities: 0.645
bulgar [2K]

Answer:

The best estimate of the proportion of adults who say that the law goes easy on celebrities is 0.7435.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

In this question:

CI is between 0.645 and 0.842. So the best estimate of the proportion is:

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The best estimate of the proportion of adults who say that the law goes easy on celebrities is 0.7435.

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3 years ago
Given:<br> p: x-5=10<br> q: 4x + 1 = 61<br> Which is the inverse of
Ksivusya [100]

Answer:

If x – 5 ≠ 10, then 4x + 1 ≠ 61

Step-by-step explanation:

We have given:

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We are given p and q statements as:

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and q: 4 x + 1 = 61 ⇒ not q (~q) : 4 x +1≠61

Hence inverse of the p → q is:

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4 years ago
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Step-by-step explanation:

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are we suposed to pick one

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