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3 years ago

How do you know if a graph is not proportional?

Mathematics

2 answers:

jok3333 [9.3K]3 years ago

8 0

The line doesn’t go thru the origin

amid [387]3 years ago

6 0

When it is not straight

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In the past, 25% of the town residents participated in the school board elections. The town officials recently undertook an exte

Wewaii [24]

Answer:

1. $H_{0}$ :at most 25% of the town residents participate in the school board election

$H_{a}$ :more than 25% of the town residents participate in the school board election

2. $p_{0}$ = 0.25

Step-by-step explanation:

$p_{0}$ is choosen as the highest possible proportion probability according to the null hypothesis, which is 25%

7 0

3 years ago

The probability of none will have high blood pressure if twenty percent of Americans age 25 to 74 have blood pressure .If 16 ran

andriy [413]

Answer:

The probability that none will have high blood pressure is 0.0281

Step-by-step explanation:

The correct question is as follows;

Twenty percent of Americans ages 25 to 74 have high blood pressure. If 16 randomly selected Americans ages 25 to 74 are selected, find each probablility. a. None will have high blood pressure

This is a binomial problem. We shall solve in that line

The probability of success is 20% or 0.2 [(Americans ages 25 to 74 have high blood pressure)] p = 0.2

The probability of failure q is thus 1-p = 1-0.2 = 0.8

The probability of none is thus;

P(X= 0) = 16C0 p^0 q^16

= 16C0 * 0.2^0 * 0.8^16 = 0.0281

8 0

3 years ago

Factor by GCF

madam [21]

Answer:

10x^(2)-4x

Step-by-step explanation:

8 0

3 years ago

Write the equation of a line perpendicular to y=0.25x-7 and passes through the point -6,8

horrorfan [7]

the equation of a line perpendicular to $y=0.25x-7$ and passes through the point (-6,8) is $y=-4x+30$

Step-by-step explanation:

We need to write equation of line perpendicular to $y=0.25x-7$ and passes through the point (-6,8)

Since the line $y=0.25x-7$ is in slope-inetercept form $y=mx+b$

the slope of line m = 0.25

As, the new line is perpendicular to the given line so, slopes of lines that are perpendicular are: slope = -1/slope1

So, slope will be -1/0.25 = -4

Now, finding y-intercept.

$y=mx+b8=4(-6)+b\\8=-24+b\\b=8+24\\b=30$

So, value of y-intercept b = 30

Now the equation of the required line having slope m= -4 and b =30 will be:

$y=mx+b\\y=-4x+30$

So, the equation of a line perpendicular to $y=0.25x-7$ and passes through the point (-6,8) is $y=-4x+30$

Keywords: Equation of line, slope-intercept form

Learn more about slope-intercept form at:

#learnwithBrainly

3 0

3 years ago

erica makes a banner using 4 sheets of paper. Each paper measures 9 inches by 19 inches. What is the total area of Erica's banne

pickupchik [31]

To find the area of the paper. You must multiply the width and the height, which is 9 and 19. 9 x 19 is 171 And multiply that by 4 171 x 4 = 684 Total area is 684

8 0

3 years ago