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3 years ago

SAMPLE QUESTION FOR 5 POINTS

Mathematics

1 answer:

Katarina [22]3 years ago

4 0

A is the correct answer that you’re looking for

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Neeeeed helpppp asapppp plzzz explainnn

pogonyaev

It is linear, this is what it looks like graphed

8 0

3 years ago

A national newspaper reported that the state with the longest mean life span is Hawaii, where the population mean life span is 7

Alinara [238K]

Answer:

Mean = 71.4 years

Standard Deviation = 20.64 years

Step-by-step explanation:

We are given the following data set:

72, 68, 81, 93, 56, 19, 78, 94, 83, 84, 77, 69, 85, 97, 75, 71, 86, 47, 66, 27

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1428}{20} = 71.4$

Sum of squares of differences =

0.36 + 11.56 + 92.16 + 466.56 + 237.16 + 2745.76 + 43.56 + 510.76 + 134.56 + 158.76 + 31.36 + 5.76, 184.96 + 655.36 + 12.96 + 0.16 + 213.16 + 595.36 + 29.16 + 1971.36 = 8100.8

$S.D = \sqrt{\displaystyle\frac{8100.8}{19}} = 20.64$

Mean = 71.4 years

Standard Deviation = 20.64 years

6 0

4 years ago

Find the solution set. The solution set for -p2 − 11p = 0 is {}. (Separate the solutions with a comma.)

Umnica [9.8K]

$-p^2-11p=0\\
-p(p+11)=0\\
p=0 \vee p=-11$

$\{-11,0\}$

8 0

3 years ago

Read 2 more answers

What is the slope intercept form of the equation of the line?

beks73 [17]

Answer:

The slope-intercept form of the equation of the line is:

y = 2/3x + 2

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

m is the slope

b is the y-intercept

Given the points

(0, 2)

(3, 4)

(x₁, y₁) = (0, 2)

(x₂, y₂) = (3, 4)

Using the formula

Slope = m = [y₂ - y₁] / [x₂ - x₁]

= [4 - 2] / [3 - 0]

= 2 / 3

Thus, the slope of the line = m = 2/3

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 2

Thus, the y-intercept b = 2

now substituting m = 2/3 and b = 2 in the slope-intercept form

y = mx+b

y = 2/3x + 2

Therefore, the slope-intercept form of the equation of the line is:

y = 2/3x + 2

5 0

3 years ago

Miguel pays $42.99 per month at Be fit gym. Jina pays $215.94 every 6 months at Main Street gym. Which Gym is more expensive?

slavikrds [6]

Main Street Gym is more expensive. I just answered this same question.

3 0

3 years ago