A university conducted a study of whether running is healthy for men and women over age 50. During the first eight years of the study, 1.9% of the 457 members of a fitness association died. We are interested in the proportion of people over 50 who ran and died in the same eight-year period.
NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)
Define the Random Variables X and P', in words. which of the following?
a.) X is the proportion of people who ran and died in the eight-year period, and P' is the number of people who ran and died in the eight-year period.
b.) X is the proportion of all runners that die, and P' is the number of all runners that die.
c.) X is the number of people who ran and died in the eight-year period, and P' is the proportion of people who ran and died in the eight-year period.
d.) X is the number of all runners that die, and P' is the proportion of all runners that die.

Answer:

Step-by-step explanation:

vfvsdgsdgses34534534

Answer:

extra and not necessary stuff

Step-by-step explanation:

stuff like extra clothes and eating out a lot ...

when you do not put in the money for extra stuff in collage can keep you on track by being reminding you you don't have money for it

The option that can not be included in the cost of college is:

The income you would have earned had you not gone to college.

Option C is the correct answer.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

a)

The cost of tuition.

This is a part of the cost of college.

b) The cost of books required for college classes.

This is a part of the cost of college.

c) The income you would have earned had you not gone to college.

This is not a part of the cost of college.

d) The cost of rent for your off-campus apartment.

This is a part of the cost of college.

Thus,

The income you would have earned had you not gone to college is not a part of the cost of college.

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The complete question is:

When calculating the cost of college, which of the following should you probably not include?

a) The cost of tuition,

b) The cost of books required for college classes,

c) The income you would have earned had you not gone to college,

d) The cost of rent for your off-campus apartment.

Answer:

x≤−3 or 2≤x<7

Hope this helps

Answer:

so you can give the other guy brainliest.

Answer:

A, C, and E

Step-by-step explanation:

To solve the equation, you would divide both sides by 5 to get t alone. the remaining equation would be t=35.

To figure out t, you need to do division, therefore the scenario requires division.

A. You can do 175 tons of food ÷ 5 tons a day. t represents the number of days. Therefore, 175÷5=35 days. (division)

B. This would be $175 - $5 since Thomas gave his sister $5. Thomas is left with $170 in winnings. (subtraction)

C. 175 minutes are used to grade 5 tests. 175 minutes ÷ 5 tests = 35 minutes spend grading 1 test. (division)

D. Mary's bookshelf holds 175 books and the top shelf only holds 5. Therefore, 175 books - 5 books on the top shelf = 170 books on the bottom shelf (unless there are more shelves). (subtraction)

E. 175 days ÷ 5 gallons of paint a day. 175÷5 = 35 gallons of paint used. (division)

Hope this helps!

9514 1404 393

Answer:

   slope = 10

Step-by-step explanation:

Examination of the values shows you that each y-value is 10 times the corresponding x value. That means the slope is 10. (If the ratios were different, then the slope formula would need to be used. The fact that they are all the same means y is proportional to x.)

__

You can use the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (40 -20)/(4 -2) = 20/2

  m = 10

The slope is 10.

Answer:

False

Step-by-step explanation:

Hope this helps :)

Hello!

[tex]\large\boxed{(4, -150)}[/tex]

We can solve for the vertex by completing the square. Begin by factoring out 6 from the equation to simplify the process:

6(x² - 8x) - 54 = 0

To complete the square, we must look at the first two terms (x² - 8x).

Remember that squaring a binomial uses the format a² + 2ab + b². We are already given a² and 2ab², so solve for b:

-8 / 2 = -4. This is the value of b.

We can rewrite this as:

(x - 4)²

However, this produces +16 which much be taken into account. Substitute (x - 4)² into the original equation:

6(x - 4)² - 54 = 0

Multiply 16 by the term in the front and subtract to cancel out this term:

6(x - 4)² - 54 - (6 · 16) = 0

Simplify:

6(x - 4)² - 150 = 0

In this form, the vertex is given as:

a(x - h)² + k, where h = x-coordinate and k = y-coordinate of the vertex.

In this instance, h = 4 and k = -150, so the coordinates of the vertex are:

(4, -150)

Answer:

y = 6x²-48x-54 has a vertex at (4,-150)

Step-by-step explanation:

There is no vertex. The solution set to 6x²-48x-54 = 0 is two points, (-1,0) and (9,0).

If you mean y = 6x²-48x-54, that is an up-opening parabola.

Put the equation into vertex form:

y = 6x²-48x-54

 = 6(x²-8x)-54

 = 6(x²-8x+4²)-6·4²-54

 = 6(x-4)² - 150

vertex at (4,-150)

Answer:

-2>y>5

Hope this helps

9514 1404 393

Answer:

  D.  Rectangle

Step-by-step explanation:

For any pyramid or prism, a cross section parallel to the base will have the same shape as the base.

A rectangular pyramid will have a rectangular cross section parallel to the base.

Answer:

Rectangle is the correct option.

Step-by-step explanation:

Answer:

3 1/2

hope this helps :)

Answer:

The Fundamental Graphing Principle for Functions says that for a point (a, b) to be on the graph,

f(a) = b. In particular, we know f(0) = 1, f(2) = 3, f(4) = 3 and f(5) = 5. Suppose we wanted to

graph the function defined by the formula g(x) = f(x) + 2. Let’s take a minute to remind ourselves

of what g is doing. We start with an input x to the function f and we obtain the output f(x).

The function g takes the output f(x) and adds 2 to it. In order to graph g, we need to graph the

points (x, g(x)). How are we to find the values for g(x) without a formula for f(x)? The answer is

that we don’t need a formula for f(x), we just need the values of f(x). The values of f(x) are the

y values on the graph of y = f(x). For example, using the points indicated on the graph of f, we

can make the following table.

x (x, f(x)) f(x) g(x) = f(x)

In general, if (a, b) is on the graph of y = f(x), then f(a) = b, so g(a) = f(a) + 2 = b + 2. Hence,

(a, b+ 2) is on the graph o

main role x (x, f(x)) f(x) g(x) = f(x) + 2 (x, g(x))

0 (0, 1) 1 3 (0, 3)

2 (2, 3) 3 5 (2, 5)

4 (4, 3) 3 5 (4, 5)

5 (5, 5) 5 7 (5, 7)

Step-by-step explanation:

Answer:

7w + 6

Step-by-step explanation:

2w + (5w + 6) = 2w + 5w + 6 = 7w + 6

Answer:

2 7th graders prefer peperoni

4 8th graders prefer peperoni

7 7th graders prefer cheese

3 8th graders prefer cheese

Step-by-step explanation:

it does tell you the answer but you have to put it down, at least for me

Answer:

880 just took the test

Step-by-step explanation:

Answer:

880 is correct

Step-by-step explanation:

if the mean is 800 and the standard deviation is 40, she needs two of the standard deviation added to 800. Which makes the equation: 800 + 40 + 40 which equals 880.

(I also took the test and got it right OwO)

Answer:

32

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

Answer:

35.

Step-by-step explanation:

You mentioned that there are 35 students in a college algebra class.

Answer:

mmmmmmmmmmmmmmmmmmmmm

Step-by-step explanation:

Answer:

-1/14

Step-by-step explanation:

We can multiply the numerator by numerator and denominator by denominator:

[tex]\frac{1*(-1)}{2*7} = \frac{-1}{14}[/tex]

I hope this helps! :)

Answer:

ummmmm so It give me 54

Step-by-step explanation:

[tex]9 \times 6 = 54[/tex]

The correct answer is 54.

9 x 1 = 9

9 x 2 = 18

9 x 3 = 27

9 x 4 = 36

9 x 5 = 45

9 x 6 = 54.

Therefore, 9 x 6 = 54.

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Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis

Exponent

Multiplication

Division

Addition

Subtraction

Step 1

3(-2x+4) =-6x-12  Equation/Question

Step 2

3(-2x+4) =-6x-12  Remove parenthesis

-6x+12=-6x-12

Step 3

-6x+12=-6x-12  Add 6x to sides

12=-12

Step 4

12=-12  Subtract 12 from sides

-24=0

Answer

No solutions

Hope this helps

Answer:

Step-by-step explanation:

Welp, we gotta solve for the solutions

Step 1

3(-2x + 4) = -6x – 12  Simplify

Step 2

3(-2x + 4) = -6x – 12  subtract 12 from the sides

-6x+12-12=-6x-12-12

-6x=-6x-24

Step 3

-6x=-6x-24  add 6x to the sides

-6x+6x=-6x-24+6x

0=-24 ??

Answer

No solution

Answer:

4.8

Step-by-step explanation:

i think

Answer:

the answer is c

Step-by-step explanation:

Answer:

x = -3

Step-by-step explanation:

Notice that the addition of angle <CDH plus angle <HDE have to give the measure of angle <CDE (which is 144 degrees as stated in the problem)

Then, we can say in equation form:

<CDH + <HDE = 144

replacing with their expressions in terms of x:

x + 93 + 57 + x = 144

solving for x:

2 x + 150 = 144

2 x = 144 - 150

2 x = - 6

x = -3

Answer:

UY = 90

GH = 4

Step-by-step explanation:

Property of similarity of two similar figures:

"If two figures are similar, their corresponding sides are proportional"

Since, FGHIJ ~ YUVWX

[tex]\frac{FG}{UY}= \frac{GH}{UV}= \frac{IJ}{WX}[/tex]

[tex]\frac{10}{UY}= \frac{GH}{36}= \frac{6}{54}[/tex]

[tex]\frac{10}{UY}= \frac{6}{54}[/tex]

UY = [tex]\frac{54\times 10}{6}[/tex]

UY = 90

[tex]\frac{GH}{36}= \frac{6}{54}[/tex]

GH = [tex]\frac{6\times 36}{54}[/tex]

     = 4

GH = 4

Answer:

7. [tex](f+g)(x) = 6x - 2[/tex]

8. [tex](f-g)(x) = 2x + 8[/tex]

Step-by-step explanation:

We are given two function, f(x) and g(x).

We want to find their addition and their subtraction, and we do this combining like terms.

The functions are:

[tex]f(x) = 4x + 3[/tex]

[tex]g(x) = 2x - 5[/tex]

7. Find (f+9) (x)

[tex]4x + 3 + 2x - 5 = 4x + 2x + 3 - 5 = 6x - 2[/tex]

So

[tex](f+g)(x) = 6x - 2[/tex]

8. Find (f - g) (x)

[tex]4x + 3 - (2x - 5) = 4x + 3 - 2x + 5 = 4x - 2x + 3 + 5 = 2x + 8[/tex]

So

[tex](f-g)(x) = 2x + 8[/tex]