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4 years ago

I need the answer pls

Mathematics

1 answer:

oksian1 [2.3K]4 years ago

3 0

Answer:

Step-by-step explanation:

To rite the equation of the function, take two points from the table. Let them be (1,21) and (3,15).

The slope of the function is

$\dfrac{21-15}{1-3}=\dfrac{6}{-2}=-3$

Thus, the equation of the function in slope-intercept form is

$f(n)=-3n+b$

Find b by substituting coordinates of the first point into the function expression:

$21=-3\cdot 1+b\\ \\b=21+3\\ \\b=24$

Therefore,

$f(n)=-3n+24$

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3 years ago

What is the value of d? −5.5(d−2)=−12.1

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3 years ago

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3 years ago

A coordinate plane is placed over an empty lot. You and a friend stand back-to-back at the origin. You face the positive y-axis

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4 years ago

Aroon is asked to choose five integers so that the mode is 2 more than the median and the mean is 2 less than the median.

torisob [31]

The mean is the sum of observations divided by number of observations.

x bar = (∑x)/n
The median is the middle value of the ordered data or the value of the interval n+1/2 for odd numbered data.
The mode is the repeated value.

<h3>The highest value is 0</h3>

Number of observations= n= 5
Median is the 3rd value when the data is arranged.
Mode is unknown

The relation between Mean, Median and mode is given by

Mode= 3 Median - 2Mean---- equation1

According to the given condition

Mode= 2+median ----- equation 2

Putting equation 2 in equation 1

2+median= 3 Median - 2Mean

2 Mean= 3 Median - 2- Median

2 Mean= 2 Median - 2

Mean= Median-1

Mean- Median=1--------Eq. A

According to the second condition

Median- Mode=-2-----------eq. 3

Putting eq. A in eq. 3

Mean -1 - Mode=-2

Mean- Mode=-1

Mode- Mean=1------equation 4

Adding equation A and equation4

Mode- Mean=1

Mean- Median=1

Mode+ Median =2------- equation5

Again Putting equation2 in equation 5

2+median + Median =2

2 Median =2-2

2 Median =0

Median=0

Mean= 0-1

Mean= 0-1=-1

Mode- Mean=1

Mode-(-1)=1

Mode=0

Putting values in the formula of mean

x bar =∑x/5

(-1)5 = 0+0+ x1+x2+0

-5= x1+x2

So the highest value is 0.

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3 years ago