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marta [7]
3 years ago
13

100 POINTS PLEASE PLEASE HELP I NEED THE ANSWER ASAPP ;(

Mathematics
2 answers:
Anestetic [448]3 years ago
8 0

Answer:

y

Step-by-step explanation:

First, let's find the equation of the line.

From the graph, we can pick out two points to use: (0,1) (the y-intercept) and (4,0) (the x-intercept).

Find the slope. Let (0,1) be x₁ and y₁ and let (4,0) be x₂ and y₂

Find the slope:

m=\frac{y_2-y_1}{x_2-x_1}

Substitute:

m=\frac{0-1}{4-0}\\m=-1/4

Use the slope-intercept form:

y=mx+b

Where m is the slope and b is the y-intercept.

We already know the slope is -1/4 and the y-intercept is 1. So, substitute:

y=-\frac{1}{4}x+1

Now, replace the equal sign with an inequality. Note that the line is dotted, so we won't use "or equal to." Also note that the blue, shaded area is <em>below</em> the line. Thus, we will use less than. Therefore:

y

The sentences:

First, we picked out two points from the graph. Next, we used those two points to find the slope. We used the slope and one of the points to write our slope-intercept equation. Afterwards, we can determine from the graph that since the shaded area is below the dotted line, the equation must have a less than.

Naddik [55]3 years ago
7 0

Answer:

y < -1/4 x +1

Step-by-step explanation:

Find two points on the dotted line

( 0,1) and  (4,0)

We can use the slope formula

m = ( y2-y1)/(x2-x1)

    = (0-1)/(4-0)

    = -1/4

The slope is -1/4

The y intercept is where it crosses the y axis  or 1

The equation of the line, using slope intercept form

y = mx+b

y = -1/4x +1

The line is dotted which means there is no equals, just greater than or less than.  It is shaded below which means less than

y < -1/4 x +1

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In the United States, there has historically been a strong relationship between smoking and education, with well-educated people
Paraphin [41]

Answer:

The proportion of former smokers with a university education is (A) 0.15

The proportion of men with a high school education that are current or former smokers is (B) 0.30

The degrees of freedom for the chi-square test for this two-way table are (B) 6

Step-by-step explanation:

The first thing to note is the two way table and ensure the proper arrangement of the figures in the table (Kindly find attached a picture of how the table should look)

Now, on to the first question on the former smokers with a university education = (43+28)/459 = 71/459 = 0.15 which is option A. [This is the total sum of former smokers with college and graduate school education].

The second question on the proportion of men with a high school education that are current or former smokers = (54+31+36)/459 = 0.285 = 0.30 (approximate value) which is option B.

The third question on the degrees of freedom for the chi-square test for this two-way table can be found with the formula DF = (r-1)(c-1) where,

DF = Degree of freedom ,

r = number of rows = 3

c = number of columns = 4 [<em>Kindly note that you have to exempt the row and columns with the totals</em>]

Therefore, DF = (3-1)(4-1) =2*3 = 6 which is option B.

6 0
3 years ago
Simplify (12ab)(3t). 15abt 123abt 36abt
Anon25 [30]
(12ab)(3t) = (12 · 3)(abt) = 36abt
8 0
3 years ago
Read 2 more answers
(c + b + a) + (-2a - 3b + c)
inna [77]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>2c - 2b - a</em>

▹ Step-by-Step Explanation

(c + b + a) + (-2a - 3b + c)

<u>Remove the parentheses</u>

c + b + a + (-2a - 3b + c)

<u>Collect like terms</u>

2c + b + a - 2a - 3b

<u>Final Answer</u>

2c - 2b - a

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

7 0
3 years ago
Read 2 more answers
9^y-3=8<br><br> JUST DO IT!<br> PLZ...
aleksley [76]
Hello My Dear Friend!

9^y-3=8<span>
We move all terms to the left:
</span>9^y-3-(8)=0<span>
We add all the numbers together, and all the variables
</span>9^y-11=0<span>
We move all terms containing y to the left, all other terms to the right
</span>9^y=11
y=11/1
y=11

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Ps. Mark As Brainliest IF Helped!)

<span>-UniteTheLeague, Justice League!!! :D</span>
7 0
3 years ago
so i just did a math quiz and i was wondering if im trying to do Equations Involving Addition what to do i thought i was doing g
wlad13 [49]

What do you need help clarifying? Did you want to go over the questions you missed? (:

4 0
3 years ago
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