4 years ago

Can someone please help me

Mathematics

1 answer:

umka21 [38]4 years ago

7 0

They're both exponential functions. See the asymptote and sharp curve? Blue is flip shifted and Red is only shifted.

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In a survey of a community, 60% of people liked summer season, 70% liked winter season and 15% liked none of the seasons.

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I answered all 3- please mark be the brainliest

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The monthly utility bills in a city have a mean of $70 and a standard deviation of $8. Find the s-scores that correspond to util

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92 because I'm really good at math

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the arithmetic sequence ai is defined by the formula: a1 = -53 ai = ai-1 + 6 find the sum of the first 880 terms in the sequence

maxonik [38]

Answer:

The sum of the first 880 terms in the sequence is 2,273,920.

Step-by-step explanation:

Arithmetic sequence:

The difference between consecutive terms is always the same, called common difference, and the nth term is given by:

$a_{n} = a_0 + (n-1)d$

In which d is the common difference.

Sum of the first n terms:

The sum of the first n terms of an arithmetic sequence is given by:

$S_{n} = \frac{n(a_1+a_n)}{2}$

ai = ai-1 + 6

This means that $d = 6$

In this question:

Sum of the first 800 terms, so $n = 800$

First term is -53, so $a_1 = -53$

The 880th term is:

$a_{880} = -53 + (880-1)*6 = 5221$

Sum

$S_{n} = \frac{880(-53+5221)}{2} = 440(-53+5221) = 2273920$

The sum of the first 880 terms in the sequence is 2,273,920.

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3 years ago

The first quartile of a data set is 72, and the third quartile is 92. Which of these values in the data set is an outlier ?

konstantin123 [22]

Answer: Option D

D. 41

Step-by-step explanation:

A value $x_i$ is considered an outlier if

$x_i> Q_3 + 1.5IQR$

$x_i$

Where

$Q_3$ is the third quartile

$Q_1$ is the first quartile

IQR is the interquartile range.

$IQR = Q_3-Q_1$

In this case:

$Q_3=92\\Q_1=72$

$IQR = 92-72 =20$

$Q_3 + 1.5IQR = 92 + 1.5*20 = 122$

$Q_1 - 1.5IQR=72-1.5*20=42$

Then the outlier values will be all those greater than 122 or less than 42

Therefore the answer is the option D.

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3 years ago

Combine the like terms to create an equivalent expression.

elena-14-01-66 [18.8K]

Answer:

3n+5

Step-by-step explanation:

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