URGENT MATH HELP NEEDED!!! WILL MARK BRAINLIEST!!! PLEASE HELP!!! URGENT!!!

The table shows the number of touchdowns Luis scored during his football games.

Touchdowns scored (X) 0 1 2 3
Number of games (f) 6 10 7 5

(a) Create a probability distribution table. Show your work.
(b) What is the probability of Luis scoring 2 touchdowns?
(c) What is the probability of Luis scoring more than 1 touchdown?
(d) What is the estimated (expected) value of the number of touchdowns Luis scores?

SHOW YOUR WORK PLEASE!!!

Answers

Answer 1

Solution-

The table shows the number of touchdowns Luis scored during his football games.

Touchdowns scored (X) 0 1 2 3

Number of games (f)             6 10 7 5

Total games played = 6+10+7+5=28

1.

[tex]Probability\ of\ an\ event=\frac{Number\ of\ Favorable\ Outcomes}{Total\ Number\ of\ Possible\ Outcomes}[/tex]

[tex]P(X=0)=\frac{6}{28} \\ P(X=1)=\frac{10}{28} \\ P(X=2)=\frac{7}{28} \\ P(X=3)=\frac{5}{28}[/tex]

Probability Distribution Table,

Touchdowns scored (X) 0      1           2      3

Probability P(X)                      6/28    10/28  7/28    5/28

2.

The probability of Luis scoring 2 touchdowns(i.e when X=2),

P(scoring 2 touchdowns) = P(X=2)

[tex]=\frac{7}{28}=0.25[/tex]

3.

The probability of Luis scoring more than 1 touchdown(i.e when X>1)

P(scoring more than 1 touchdowns) = P(X>1) = P(X=2) + P(X=3)

[tex]=\frac{7}{28}+\frac{5}{28}=0.42[/tex]

4.

Estimated number of touchdowns is calculated by multiplying the number of touchdowns by their respective probabilities and adding the result.  

Estimated number of touchdowns is,

[tex]=0\times \frac{6}{28}+1\times \frac{10}{28}+2\times \frac{7}{28}+3\times \frac{5}{28}[/tex]

[tex]=0+\frac{10}{28}+\frac{14}{28}+\frac{15}{28}[/tex]

[tex]=\frac{39}{28}=1.39[/tex]



Related Questions

22=9x+4-3x what is x

Answers

22 = 9x + 4 -3x

22 - 4 = -3x + 9x

18 = 6x

x = 18 : 6

x = 3

Find the product of (3x+7y)^2
A) 9x^2 - 42xy + 49y^2
B) 9x^2 - 49y^2
C) 9x^2 + 49y^2
D) 9x^2+42xy+49y^2

Answers

Answer:

9x^2 − 42xy + 49y^2

Step-by-step explanation:


The product of [tex](3x + 7y)^2[/tex] is: D)[tex]9x^2 + 42xy + 49y^2[/tex]

How to find the products

The product of (3x + 7y)^2 can be found using the formula for squaring a binomial:

(3x + 7y)^2 = (3x + 7y)(3x + 7y)

To calculate this product, you can use the distributive property (FOIL method):

(3x + 7y)(3x + 7y) = (3x * 3x) + (3x * 7y) + (7y * 3x) + (7y * 7y)

Now, simplify each term:

(9x^2) + (21xy) + (21xy) + (49y^2)

Combine like terms:

9x^2 + 42xy + 49y^2

So, the product of [tex](3x + 7y)^2[/tex] is:

D)[tex]9x^2 + 42xy + 49y^2[/tex]

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Marty ran 4 miles more than Shana ran. Write an expression for how far Shana ran using Marty’s variable “m”

Explain what the 4 inequality signs represent in your own words

Answers

The expression would be m - 4 because if Marty ran 4 more miles than Shana, that means that Shana ran 4 less miles than Marty.


The four inequalities are less than, less than or equal to, greater than, and greater than or equal to. Less than means that a number is less than the other number. For example, if you say 4 is less than 7 it is because 4 is less than 7 by 3 which makes 7 value more than 4. For less than or equal to, it means that the number or variable is less than or the same number as the other number. For example, if you say x is less than or equal to 9, that means that x is less than 9 or equal to 9. For greater than, it means that the variable is greater than the other number. For example, if x if greater than 10 than the variable has to be greater than 10 or 11 and so on. For greater than or equal to, it means that the variable is greater than the other number or equal to that number. For example, if x is greater than or equal to 12, then x is greater than 12 or 13 and up or x is equal to 12 or x is 12.

Please help with geometry homework!!!!

Answers

Area of Parallelogram ABCD is equivalent to the area of rectangle AXBY.

Area of rectangle AXBY= Length AX * Length AB= 3 ft * 4√2 ft = 12√2 sq.ft.

Thus Area of Parallelogram is 12√2 sq.ft.

The metric system is based on the number ___. 1 2 10 12

Answers

Answer:

The metric system is based on the number 10.

Step-by-step explanation:

We have been given an incomplete statement. We are asked to fill in the blank for given statement.

The metric system is based on the number ___.

We know that metric system is an alternative system of measurement used in most countries including the United States. This system includes prefixes like kilo-, hecto-, deka-, deci-, centi-, and milli.

The metric system is based on number 10 as all these units are based on power of 10.

Therefore, option C is the correct choice.

The metric system is based on the number 10.

Here, we have,

The metric system is a decimal-based system of measurement that is widely used around the world. It is designed to be a coherent and consistent system, with units of measurement that are related to each other by powers of 10.

In the metric system, there is a base unit for each quantity being measured, such as meters for length, grams for mass, and liters for volume. The prefixes are then used to indicate multiples or fractions of the base unit. These prefixes are based on powers of 10, which allows for easy conversions between different units within the system.

For example, when we go from a larger unit to a smaller unit within the same measurement category, we move the decimal point to the right by powers of 10. Likewise, when we go from a smaller unit to a larger unit, we move the decimal point to the left by powers of 10.

This decimal-based nature of the metric system makes it highly convenient for scientific and everyday use, as it simplifies calculations and conversions.

The metric system is based on number 10 as all these units are based on power of 10.

Therefore, option C is the correct choice.

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Animal shelter house ratio catch a dog that is 9:7. If the shelter only as his dogs and cats what is the ratio of dogs total animals?

Answers

Answer:

The ratio of dogs to animals  [tex]\frac{9}{16}[/tex].

Step-by-step explanation:

If the shelter captures 9 dogs they also catch 7 cats.

So,

the total number of Animals = Total number of Dogs + Total number of Cats

                                                = [tex]9+7[/tex]

                                                 =[tex]16[/tex]

Therefore,

The ratio of dogs to animals    = Number of Dogs / Total number of animals

                                                   = [tex]\frac{9}{16}[/tex]

7/16

7 is dog 9 is cat

7+9=16

find the quotient and remainder. Please select the vest abswer from the answer choices

Answers

Answer:

Quotient = x^4 + x^3 + x^2 + x + 1

Remainder = 0

Step-by-step explanation:

(x^5 +1) is divided by (x - 1) as shown below:

(x^5 +1) / (x - 1)

where x^5 is divided by (x - 1) when multiplied by x^4 (quotient) to give x^4 - 1.

Now x^4 - 1 is divided by is divided by (x - 1) when multiplied by x^3 (quotient) to give x^3 - 1.

Then again x^3 - 1 is divided by (x - 1) when multiplied with x^2 (quotient) to give x^2 -1.

x^2 - 1 is divided by (x - 1) when multiplied by x to give (x - 1).

Lastly, (x - 1) is divided by (x - 1) when multiplied by 1 to cancel the terms with remainder 0.

in a class of 30 students. 13 of them are boys.

what percentage of the class are girls?
give your answer to 1 decimal place.

Answers

Hello...

Students - 30

Boys - 13

Girls - ?

30 - 13 = 17

There are 17 girls!

Percentage:

17 / 30 = 0.56666666667...

= 56.6...

Answer:

56% are girls

44% are boys

56.66% is the percentage of the class are girls.

What is Percent?

To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is primarily used to compare and determine ratios and is represented by the symbol %.

Given:

Total students= 30

Number of boys= 13

Number of girls = 30- 13 = 17

So, percentage of the class are girls

= 17 /30 x 100

= 0.56666x 100

= 56.66%

Hence, 56.66% is the percentage of the class are girls.

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Her goal was to rased 5000 dollers to help protect the manites she rased 3500 what persent of the goal did she rase

Answers

The answer should be
3500 divided by 5000
Answer is 0.7
So 70%

Complete the two column proof

Answers

a. is Substitution Property

b. might be definition of supplementary angles

Answer:

B is the sum of adjacent angles is 180 degrees

Step-by-step explanation:

It is showing you that m∠3 and m∠4 "=" 180

write an equation of a parabola with vertex at origin (0,0) with the given focus, and find the directrix. given the focus at (0,-4)

Answers

Directrix:

If the vertex of the parabola is at (0, 0) and the focus is (0, -4) which is 4 units down then the directrix will be the line 4 units UP.

Answer: y = 4

Equation of parabola:

[tex]y = \frac{1}{4p}x^{2}[/tex]  ; where p is the distance from the vertex to the focus.

As stated above, the focus is 4 units down, so p = -4

[tex]y = \frac{1}{4(-4)}x^{2}[/tex]

[tex]y = \frac{1}{-16}x^{2}[/tex]

Answer: [tex]y = -\frac{1}{16}x^{2}[/tex]


Simplify m - {n - [p + (m + n - p)]}.

0
2m
-2m + 2p

2.Select the correct difference.

-3z 5 - (-7z 5)

Answers

Answer:

0

4z^5

Step-by-step explanation:

We are asked to

Simplify m - {n - [p + (m + n - p)]}.

For that we remove first internal bracket and then next in the same order.

= m - {n - [p + m + n - p]}. (by removing the inner bracket)

Now we simplify the term inside by cancelling p

=  m - {n - [ m + n ]}.  Next is multiply by - the term m+n.

= m-[n-m-n].  Now n cancels out.

=m-(m) = 0

Finally we get 0 as answer.

0

2m

-2m + 2p

2.Select the correct difference.

-3z^ 5 - (-7z^ 5)

= 3z^5+7z^5

= 4z^5



The product of two numbers is 40. If one of the numbers is 8/15, what is the other number?

Answers

If one number is 8/15, you take the difference which 7/15.
Final answer:

When the product of two numbers is 40 and one of the numbers is 8/15, the other number can be found by dividing 40 by 8/15, which is 937.5.

Explanation:

The question is asking for the other number when the product of two numbers is 40 and one of the numbers is given as 8/15. To answer this, we need to use the concept that the product of two numbers is equal to one number multiplied by the other. Therefore, to find the missing number, we need to divide 40 (the product) by the given number (8/15).

So, the calculation will look like this: 40 ÷ (8/15) = 7500/8 = 937.5.

Thus, the other number is 937.5 .

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Multiply. (7x-4)(4x-3)

Answers

Your answer is 28x^2-37x+12

1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd

28x^2-21x-16x+12

2) Collect like terms

28x^2+(-21-16x)+12

3) Simplify

28x^2-37x+12


Use FOIL

28x-21x-16x+12

-9x+12

Can someone please help me?


The graph shows a journey in a car. Which of the statements most likely describes the start of the journey at the portion of the graph labeled I?

Answers

Constantly accelerating because it is a straight line at a diagonal.

Does 14.2857143 rounded to a whole number

Answers

It can be rounded to the closest whole number which is 14

How do you determine the solution of a systems of linear equations from a graph?

Question 2 options:

A.The solution is the x-intercept


B.The solution is the y-intercept


C.The solution is the intersection of both lines


D.The solution cannot be determined from a graph

Answers

Suppose you have two lines, and consider the system of their equations:

[tex] \begin{cases} y = mx+q\\y=m'x+q'\end{cases} [/tex]

Suppose that a certain point [tex] (x,y) [/tex] belongs to the first line. This means that his x and y coordinates follow the rule [tex] y=mx+q [/tex]. Similarly, if another point [tex] (x',y') [/tex] belongs to the second line, his x and y coordinates follow the rule [tex] y'=m'x'+q' [/tex].

A system is solved by the points that satisfy both equations simultaneously. But satisfying an equation means to belong to the graph that the equation represents.

So, the solution to the system is the point that belongs to both lines, i.e. that satisfies both equations.

Sam took out an 80/20 mortgage on a $205,000 home. What is the amount financed under the first mortgage
a.$164,000
b.$41,000
c.$205,000
d$120,000

Answers

Given condition is: Sam took out an 80/20 mortgage on a $205,000 home.

Here, 80/20 refers to 80% mortgage amount means it will be paid as mortgage and 20% loan amount.

So, to find the amount financed under the first mortgage, we will find 80% of 205000.

[tex]\frac{80}{100}\times205000[/tex]

= $164000

Hence, option A is the correct answer.

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!

Solve.

x^2 − 9x + 3 = 0

Answers


[tex]given \: equation: {x}^{2} - 9x + 3 = 0 \\ \\ x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} \\ \\ x = \frac{ 9 \pm \sqrt{ {( - 9)}^{2} - 4 \times 1 \times 3} }{2 \times 1} \\ \\ x = \frac{9 \pm \sqrt{81 - 12} }{2} \\ \\ x = \frac{9 \pm \sqrt{69} }{2} \\ \\ x = \frac{9 + \sqrt{69} }{2} \: \: and \: \: \frac{9 - \sqrt{69} }{2}[/tex]

1.Suppose f(x)=6x^2+2x-7 and g(x)=4x-3.Find Each Of The Following Function.
a. (f+g)(x)
b.(f-g)(x)

2.Suppose f(x)=2x-3x and g(x)=1-2x. Find Each Of The Following Functions.
a. (f+g)(x)
b.(f-g)(x)

Answers

(1)

(f+g)(x) = 6x^2+2x-7+4x-3=6x^2+6x-10

(f-g)(x)=6x^2+2x-7-4x+3 = 6x^2-2x-4

(2)

(f+g)(x)=2x-3x+1-2x=-3x+1

(f-g)(x)=2x-3x-1+2x=x-1

When evaluating a complex expression which of the following rules should be followed

A - Evaluate from left to right

B - Evaluate from right to left

C- Evaluate using order of operations

D- Evaluate in any order

Answers

c : evaluate using order of operations ( pemdas )

Answer:

Option: C is the correct answer.

 C-   Evaluate using order of operations

Step-by-step explanation:

We know that while solving a algebraic expression we must follow the rule:

                       PEMDAS

whose full form is:

  Parenthesis , Exponents,Multiplication division addition and subtraction.

This means that parenthesis is to be solved first then the preference is given to the exponent, then division and multiplication are treated at the same level and the last preferred operation is addition and subtraction.

     Hence, the correct answer is:

          Option: C

SOMEONE PLZ HELP
Write the recursive rule of the sequence -9, -3, 3, 9,...  .
________________________________________
-A line has an x-intercept of (4, 0) and a y-intercept of (0, 12). Find the slope of the line.
________________________________________
-A horizontal line includes the points (0, -5 ) and ( 2, -5 ) Find the slope of the line.

Answers

The second is m= -4
the third is zero

A movie theater has 250seats. 3250 tickets were sold at the theater. How many movies were shown at the theater last week if every person who bought a ticket saw a movie and every seat was filled for each feature?

Answers

answer will be equal to 3250 divided by 250 which is 13

Write the following statement as a conditional statement.

Stars have ten vertices.


A) If a figure has ten vertices, then it is a star.

B) A figure is a star, if and only if, it has ten vertices.

C) Star are figures with ten vertices.

D) If a figure is a star, then it has ten vertices.

Answers

A) If a figure has ten vertices, then it is a star. This is the correct conditional statement.

Conditional statement can be simplified as : if a, then b. Here 'a' is one condition and 'b' is second condition. So, based on this, option A is correct.


Answer:

The correct option is D.

Step-by-step explanation:

The given statement is "Stars have ten vertices".

If a complete statement has two sub statements p and q, then the conditional statement is "If p, then q", where p is a hypothesis and q is a conclusion.

In the given statement,

p = A figure is a star.

q = It has ten vertices

So, the conditional statement of the given statement is

If a figure is a star, then it has ten vertices.

Therefore the correct option is D.

At a restaurant, the bill comes to $60. If you decide to leave a 14% tip, how much is the tip?

Answers

60 times 0.14 = 8.4

You would give $8.40 as a tip of 14% from a bill of $60

Final answer:

To calculate a 14% tip on a $60 bill, you multiply 0.14 by $60, resulting in a tip of $8.40.

Explanation:

To find out how much a 14% tip is on a $60 bill, we need to convert the percentage into a decimal by dividing by 100.

This gives us 0.14 as the decimal form of 14%.

We then multiply this decimal by the total bill amount to calculate the tip: 0.14 × $60 = $8.40

Therefore, the tip would be $8.40.

Solve the system equation.

Answers

Answer:

A) (0, 2)

Step-by-step explanation:

Rewriting the second equation to the same form as the first, it becomes

... 1/2y = x + 1

... y = 2x + 2

Now, it is clear that both equations have the same y-intercept at y=2, so that is the solution.

... (x, y) = (0, 2)

please help on this one?

Answers

I think it is B. If you drew a graph of this and the x axis was time and the y axis is the  enrollment then you would get 3  different x values and  1 y value. That's still a function. I've drawn it below.


WILL GIVE BRAINLIEST!

Factor the expression completely over the complex numbers. x4+10x2+25

Answers

Answer:

[tex](x-i\sqrt 5)^2(x+i\sqrt5)^2[/tex]

Step-by-step explanation:

We are given that an expression

[tex]x^4+10x^2+25[/tex]

We have to find the factorize the expression completely over the cmplex number.

[tex](x^2+5)^2[/tex]

Using identity [tex](a+b)^2=a^2+b^2+2ab[/tex]

[tex](x^2+5)(x^2+5)[/tex]

Substitute each factor equal to zero.

[tex]x^2+5=0[/tex] ,[tex]x^2+5=0[/tex]

[tex]x^2=-5[/tex]

[tex]x=\pm \sqrt{-5}=\pm i \sqrt 5[/tex]

[tex]x=i\sqrt 5[/tex] and [tex]x=-i\sqrt 5[/tex]

[tex]x-i\sqrt 5=0[/tex] and [tex]x+i\sqrt 5=0[/tex]

The factor of second term is also same

Therefore, the factors of the   expression completely is given by

[tex](x-i\sqrt 5)^2(x+i\sqrt5)^2[/tex]

The solution to the quadratic equation is ±5i

Factorizing quadratic equations

Given the expression below:

x^4+10x^2+25 = 0

Let P = x^2

Substituting into the expression, we will have;

P^2 + 10P + 25 = 0

Factorizing the expression, we will have:

P^2 + 10P + 25 = 0

P^2 + 5P+ 5P + 25 = 0

P(P+5) + 5(P + 5) = 0

(P+5)(P+5) = 0

P = - 5 twice

Substitute into the given substitute

x^2 = -5

x = √-5

x = ±5i

Hence the solution to the quadratic equation is ±5i

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please please please help!

Answers

Answer:

it is a neg slope


Step-by-step explanation:


Which of the following is the correct expansion of (x - 2)(x - 5)?


x2 + 7x + 10


x2 + 7x - 10


x2 - 7x - 10


x2 - 7x + 10

Answers

Use distributive property:

(a + b)(c + d) = ac + ad + bc + bd

(x - 2)(x - 5) = (x)(x) + (x)(-5) + (-2)(x) + (-2)(-5) = x² - 5x - 2x + 10

Answer: (x - 2)(x - 5) = x² - 7x + 10
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