The Data: Statistics about smoking and lung cancer for adults (age 18 and older) in the U.S:
⦁ Researchers estimate that 21.5% of men and 17% of women smoke cigarettes.1
⦁ The rate of new cases in 2008 showed that men develop lung cancer more often than women (70.2 and 50.5 cases per 100,000 persons, respectively).2
⦁ Smoking, a main cause of small cell and non-small cell lung cancer, correlates to 90% and 80% of lung cancer deaths in men and women, respectively.3 That is, 90% of men who are diagnosed with lung cancer are active smokers, and 80% of women who are diagnosed with lung cancer are active smokers.
Analyze the Conjecture:
1. What answer do you predict? Why? (2 points)
I predict 90% All the probabilities are given for the three different scenarios in men and women: people who smoke, people who develop lung cancer, and people who develop lung cancer who are also smokers. Then, these are even classified in terms of gender.







2. Given what you know about probability, how can you determine if smoking and lung cancer are related? (2 points)








Analyze the Data:
3. What is the probability that a randomly chosen man is a smoker? (1 point)




4. What is the probability that a randomly chosen man will be diagnosed with lung cancer? (1 point)








5. Given that a man has lung cancer, what is the probability that he is a smoker? Write this event with the correct conditional notation. (2 points)




6. What is the probability that a randomly selected man will be a smoker and be diagnosed with lung cancer? (2 points)








7. For a randomly selected man, are the events diagnosed with lung cancer and smoker independent events? Support your answer with probabilities. (2 points)












Consider the Case for Women:
8. For a randomly selected woman, are the events diagnosed with lung cancer and smoker independent or conditional? Support your answer with probabilities. (4 points)
















Making a Decision:
9. What can you conclude about smoking and lung cancer? Are they conditional or independent events? (2 point)




10. Some people who have never smoked develop lung cancer. Does this disprove the evidence? (1 point)

Answer:

4

Step-by-step explanation:

Since YP is an angle bisector, Angle 1 and 2 are equal.

We know WYX is 17x+4 so

2 times Angle 1 is 17x+4

[tex]2(8x + 4) =17x + 4[/tex]

[tex]16x + 8 = 17x + 4[/tex]

[tex]4 = x[/tex]

The value of  ∇r^n = n(r^n-2)r​ is [tex]-n r^{n-2} \bar{r}[/tex]

A quantity in mathematics known as a vector that lacks position but has both magnitude and direction

The movement of an object between two points is described by a vector. The directed line segment can be used to geometrically represent vector math. The magnitude of a vector is the length of the directed line segment, and the vector's direction is indicated by the angle at which it is inclined.

Given ,

[tex]$&\nabla r^n=n r^{n-2} \bar{r} \\[/tex]

[tex]$&\text { let } \bar{r}=x \hat{i}+y \hat{j}+z \hat{k} \\[/tex]

[tex]$&r=|\bar{r}|=\sqrt{x^2+y^2+z^2} \\[/tex]

[tex]$&\frac{\partial r}{\delta x}=\frac{-x}{r} ; \frac{\delta r}{\delta y}=-\frac{y}{r}, \frac{\delta r}{\delta z}=-\frac{z}{r} \\[/tex]

[tex]$&\because \nabla r^n=\frac{\delta}{\delta x}\left(r^n\right) \hat{i}+\frac{\delta}{\delta y}\left(r^n\right) \hat{j}+\frac{\delta}{\delta z}\left(r^n\right) \hat{k} \\[/tex]

[tex]$&\left.=n r^{n-1} \frac{\delta r}{\delta x} \hat{i}+n r^{n-1} \frac{\delta r}{\delta y} \hat{j}+\frac{\delta}{\delta z} x r^n{ } \hat{k} \\[/tex]

[tex]$&=n r^{n-1}\left[\frac{\delta r}{\delta x} \hat{i}+\frac{\delta r}{\delta y} \hat{j}+\frac{\delta r}{\delta z} \hat{k}\right] \\[/tex]

[tex]$&=n r^{n-1}\left[\frac{\delta r}{\delta x} \hat{i}+\frac{\delta r}{\delta y} \hat{j}+\frac{\delta r}{\delta z} \hat{k}\right] \\[/tex]

[tex]$&=n r^{n-1}\left[-\frac{x}{r} \hat{i}- \frac{y}{r} \hat{j}-\frac{z}{r} \hat{k}\right] \\[/tex]

[tex]$&=\frac{n r^{n-1}}{r}[-x \hat{i}-y \hat{j}-z \hat{k}]=-n r^{n-2} \bar{r} \\[/tex]

Therefore the value of ∇r^n = n(r^n-2)r is [tex]-n r^{n-2} \bar{r}[/tex]

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Using the proportion rule, the ratios 1/3 and 2/5 does not form a proportion.

In the given equation,

We have to check the ratios 1/3 and 2/5 form a proportion or not.

As we know that proportion is a ratio in which both ratios are equal to each other.

So to check whether the given statement is proportion or not we put both equation equal to each other.

So the ratios are 1/3 and 2/5.

Now checking the proportion.

1/3=2/5

Multiply by 15 on both side.

1/3 ×15=2/5 ×15

Simplifying

1×5=2×3

5=6

As we can see that both side is not equal so the given ratio is not proportion.

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The equation of the parabola from the vertex is f(x) = -3(x - 5)² + 9

The equation of the function is given as

f(x) = 3x²

Also, we have

Vertex = (5, 9)

The form of the equation is given as

f(x) = a(x - h)² + k

Where

Vertex = (h, k)

This means that

Vertex = (h, k) = (5, 9)

Substitute (h, k) = (5, 9) in the equation f(x) = a(x - h)² + k

So, we have

f(x) = a(x - 5)² + 9

This also means that

f(x) = -3(x - 5)² + 9

The -3 is gotten from f(x) = -3x²

Hence, the equation of the parabola is f(x) = -3(x - 5)² + 9

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The third graph passing through the points (-2,4) and (2,-2) represents the equation y = 3/2x + 1.

Given:

y = 3/2 x + 1

m = 3/2

the graph whose m value is equal to 3/2 is correct.

First graph:

Take any two points (-2,-2) and (0,2)

slope m = 2-(-2) / 0-(-2)

= 2+2 / 0+2

= 4/2

= 2

This graph is incorrect

Second graph:

Two points(-2,2) and (2,-4)

slope m = -4-2 / 2-(-2)

= -6/2+2

= -6/4

= -3/2

This graph is incorrect.

Third graph:

Two points (-2,4) and (2,-2)

slope m = -2-4 / 2-4

= -6/-2

= 3/2

This graph is correct.

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The actual price of an item is $1371.49.

Given that, the discount percentage is 12.5% and the selling price is $1200.

A discount is the reduction of either the monetary amount or a percentage of the normal selling price of a product or service.

Let the actual price be x.

Now, x-12.5% of x =1200

⇒ x- 12.5/100 ×x=1200

⇒ x- 0.125x=1200

⇒ 0.875x=1200

⇒ x=1200/0.875

⇒ x=$1371.49

Therefore, the actual price of an item is $1371.49.

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Co-interior angles are the two angles that occur between two parallel lines intersected by a transversal.

The sum of the co-interior angles is 180 degrees.

The value of x is 15.

The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.

Corresponding angles are equal.

We have,

Co-interior angles are the two angles that occur between two parallel lines intersected by a transversal.

The sum of the co-interior angles is 180 degrees.

(8x + 9)° and 51° are co-interior angles.

So,

8x + 9 + 51 = 180

8x = 180 - 60

8x = 120

x = 120/8

x = 15

Thus,

The value of x is 15.

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The probability of choosing a box and picking two quarter coins in a row is 1/108

Probability is the branch concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1. 0 indicates impossibility of the event and 1 indicates certainty.

Probability= sample space / total possible outcome

therefore probability of choosing two quarters in a row = 1/6×1/6= 1/36

The probability of choosing the first box =1/3

Therefore the probability of choosing the first box and picking two quarters In a row is 1/36×1/3= 1/108.

Since box two contain no quarter and box three has only one quarter , the probability of choosing two quarters in a row is 0.

Therefore the probability of choosing a box at random and picking two quarters in a row is 1/108.

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Answer:

Tens:11,410

Ten thousand :10,000

Hundred : 11,400

The answer is : p = -4

the following are the steps to solve it::

13 - 3p = -5 (3 + 2p)

calculate the area of the right hand first by multiplying the number 5 by the number in brackets

13 - 3p = -15 - 10p

move everything that contains p to the left side

13 - 3p + 10p = - 15

count all containing p

13 + 7p = -15

move the ones that don't contain p to the right

7p = -15 - 13

count on the right side

7p = - 28

p = -4

Answer:

slope = 16/13, increasing

Step-by-step explanation:

solve for the slope

-1.2-(-2.8)/(6.4-5.1)

= 16/13

it's positive meaning it's increasing

Answer:

b: x=66 degrees

Step-by-step explanation:

132 degrees and 2x are corresponding angles since of the transversal.

So 132=2x and x=66 degrees

The Algebraic expression that cannot be factorized is [tex]x^{2}[/tex] + 1

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.).

[tex]x^{2}[/tex] + -3x -18  can be expressed as  [tex]x^{2}[/tex] -6x +3x -18 which can be factored as (x -6)(x +3)

Also  [tex]x^{2}[/tex] + 7x + 6, (x+6)(x+1)

[tex]x^{2}[/tex] + 5x + 6 , (x+3)(x+1)

But  [tex]x^{2}[/tex] + 1 cannot be factored because since it does not have a variable of x.

In conclusion,  [tex]x^{2}[/tex] + 1 cannot be factored.

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Answer:

75%

Step-by-step explanation:

The required expression 16m + 6n - 8 represents the perimeter of the triangle. which is the correct answer would be option (D).

A triangle has side lengths of (7m - 2) centimeters, (9m - 5) centimeters, and (6n - 1) centimeters.

The perimeter of a triangle is defined as the addition of the lengths of the triangle's three sides.

The perimeter of the triangle = (7m - 2) + (9m - 5) + (6n - 1)

Rearrange the terms likewise in the above equation,

The perimeter of the triangle = 7m + 9m + 6n - 2 - 5 - 1

Apply the arithmetic operation to get the required expression

The perimeter of the triangle = 16m + 6n - 8

Therefore, the required expression 16m + 6n - 8 represents the perimeter of the triangle.

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The additive inverse of the matrix A is [tex]\left[\begin{array}{cc}0&2&3&5\end{array}\right][/tex]

From the question, the matrix is given as

[tex]\left[\begin{array}{cc}0&-2&-3&-5\end{array}\right][/tex]

This matrix is given as matrix A

So, we have the following representation

A = [tex]\left[\begin{array}{cc}0&-2&-3&-5\end{array}\right][/tex]

Next, we calculate the required matrix operation

The matrix operation is given as additive inverse of the matrix

This additive inverse of the matrix is calculated by negating each element present in the matrix

i.e. if an element in the matrix is a, the inverse would be -a

Using the above highlights as a guide, we have the following representations

Additive inverse = [tex]\left[\begin{array}{cc}0&2&3&5\end{array}\right][/tex]

Hence, the additive inverse is [tex]\left[\begin{array}{cc}0&2&3&5\end{array}\right][/tex]

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Answer:

D. 4 5/13

Step-by-step explanation:

For every time we divide by 13, we consider that a whole number. The whole number is the number on the outside of the fraction. It is equal to 13/13 in this case. So, we can divide 57 by 13, 4 times and have 5/13 left over. Therefore, the answer is D. 4 5/13! :)

The ingredients Rose needs to make 5 short bread fingers are;

Recipe for 30 shortbread fingers.

To determine the recipe needed for 5 short bread fingers ; divide 30 by 5

= 30/5

= 6

This means, each recipe needed for 30 short bread fingers will be divided by 6 to achieve recipe needed for 5 short bread fingers.

Therefore,

Recipe needed for 5 short bread fingers:

Butter = 120 g / 6

= 20 g

Sugar = 60 g / 6

= 10 g

Flour = 180 g / 6

= 30 g

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Answer: D

Step-by-step explanation:

I dont gotta explain it, here you go bro :) its -10

Answer:

x=12

Step-by-step explanation:

2x+4=6x

x-6=6x

6x=6x

x=6+6

1

Step-by-step explanation:

28-28=1 11111111111111111111111111

Graph will shift from(0,0) to (3,4) after the shifting happens due to change in expressions of the parent function.

Graph transformation is the process by which an parent graph, or graphed equation, is changed to produce a variation of the proceeding graph. It's a common type of problem in algebra, specifically the modification in algebraic equations.

The deduced parent function is [tex]\sqrt{x}[/tex]

So, Domain= (0 , ∞)

     Range= (0 , ∞)

Let us take (0,0) as the point and see the shifting of the point with respect to (0,0).

So when function is transformed to √x+3

Function shift from (0,0) to (3,0)

and when function is transformed to [tex]\sqrt{x+3} +4[/tex]

then point shifts to (3,4).

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The decimal that represents the number 4×1+1×1/100+9×1/1000 is given as follows:

4.0119.

A fraction is represented by the division of a term x by a term y, such as in the equation presented as follows:

Fraction = x/y.

The terms that represent x and y are listed as follows:

In this problem, we are given two fractions, and their decimal equivalents are given as follows:

Hence the numeric value of the expression is given as follows:

4×1+1×1/100+9×1/1000 = 4 + 0.01 + 0.0019 = 4.0119.

Which is the decimal number represented by the fraction.

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Answer:

BC = 7.9 cm

Step-by-step explanation:

To construct triangle ABC:

He has to climb UP 40 feet

Step-by-step explanation:

Answer:

Dinner should cost 250 today.

Step-by-step explanation:

Answer:

15.62 is the length of the side of the rhombus.

Step-by-step explanation:

Formula:

A = (e x f)/2

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Answer:

Unit rate is 2

Step-by-step explanation:

Pick two columns of the ordered pairs. Lets use (2,4) and (3,6)

The x values are 2 and 3 and the y values are 4 and 6

Now you’re going to divide y by x so

4/2 = 2

6/3 = 2

(Always choose two ordered pairs so you know that your answer is right)

Unit rate of the table is 2.

The units of concentration and rate are always going to be molars per second. We now understand that molar per second is equal to k times molar in units. An item's unit rate is its price for one of it. This is expressed as a ratio with a one as the denominator. For instance, if you covered 70 yards in 10 seconds, you covered 7 yards on average every second. Seven yards in one second and 70 yards in ten seconds are both ratios, but only one of them is a unit rate.

Given,

Choose two columns from the paired ordered columns. Using (2, 4) and (3,6)

The x and y values are 2 and 3, respectively, and the

You will now divide y by x, so

4/2 = 2

6/3 = 2

Unit rate of the table is 2.

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The equation of a line is written as [tex]y=mx+c[/tex].

What is the equation of a line?

The equation [tex]y = mx + c[/tex] is the general equation of any straight line where [tex]m[/tex] is the gradient of the line and [tex]c[/tex] is the [tex]y -intercept[/tex] .

Here the given equation is

[tex]y=1.5x+20[/tex]       ........[tex](1)[/tex]

when [tex]x=0[/tex]

[tex]y=1.5(0)+20\\y=20[/tex]

when [tex]x=1[/tex]

[tex]y=1.5(1)+20\\y=1.5+20\\y=21.5[/tex]

when [tex]x=-1[/tex]

[tex]y=1.5(-1)+20\\y=-1.5+20\\y=18.5[/tex]

Draw the graph

Hence, by using the values of [tex]x[/tex] and [tex]y[/tex] we formed a straight-line graph.

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It will take 12 hours for 15 men to do same job.

How to determine this?

When amount of hour ∝ 1/number of men

When H represent Hour

And M represent the number of men

k to represent the constant

H = k/M as it is inversely proportional

It takes 10 men 18 hours to repair a road

18 = k/10

k = 18 × 10

k = 180

How long will it take 15 men?

When k = 180

H = k/M

H = 180/15

H = 12 hours

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