if a football team has a 90% chance of making a field goal for three points and 35% chance of making a touchdown for seven point find the expected value of a touchdown

Answers

Answer 1

Answer:

[tex]V(X) = 2.45\ pts[/tex]

Step-by-step explanation:

We look for the expected value for a touchdown.

If X represents the number of points scored per touchdown scored, then X is a discrete random variable, and by definition, the expected value V (X) for a discrete random variable is defined as:

[tex]V(X) = \sum{XP(X)}[/tex]

Where P(X) is the probability that X will occur.

In the sample space of the random variable X there are two possible values.

[tex]X = 7[/tex] points (1 touchdown) with [tex]P(7) = 0.35[/tex]

[tex]X = 0[/tex] points (0 touchdown) with [tex]P(0) = 1-0.35 = 0.65[/tex]

Then the expected value V(X) is:

[tex]V(X) = 7P(7) + 0P(0)[/tex]

[tex]V(X) = 7(0.35) + 0(0.65)[/tex]

[tex]V(X) = 2.45\ pts[/tex]


Related Questions

With increased concentration, temperature, and pressure, there is also an increased chance that a chemical reaction will occur. What do all these factors have in common?

Answers

Answer:

A chemical reaction will occur

Hope this helps

Love,

Morgan Malice

Answer: increased particle collisions

Step-by-step explanation: Is the correct answer on Edge

-2x(6xto the 4th -7xsquared +x-5) express your answer in standard form Multiply

Answers

Answer:

[tex]\large\boxed{-2x(6x^4-7x^2+x-5)=-12x^5+14x^3-2x^2+10x}[/tex]

Step-by-step explanation:

[tex]-2x(6x^4-7x^2+x-5)\qquad\text{use the distributive property}\\\\=(-2x)(6x^4)+(-2x)(-7x^2)+(-2x)(x)+(-2x)(-5)\\\\=-12x^5+14x^3-2x^2+10x[/tex]

Is the following shape a rectangle? How do you know?

Answers

Answer:

The correct answer is A.

Step-by-step explanation:

You can see that it's not a rectangle because the aides that are adjacent to are not perpendicular.

Answer:

D

Step-by-step explanation:

:D

I need help with this question

Answers

Answer:

294.6 earth years

Step-by-step explanation:

You only need to multiplied by 10

Best regards

Answer:

C

Step-by-step explanation:

multply by 10

You buy a total of 25 sweatshirts and hats for $172.50ypu pay $8.00 per sweatshirt and $2.50 per hat how many items do you buy

Answers

Answer:

im not sure but you can find the answer on  math solver with steps

Step-by-step explanation:

julian currently has a balance of -$10.48 in his checking account. His bank requires him to maintain minimum balance of $20.

Answers

He should put in $30.48 to reach the minimum.

Hope this helps.

Emilie draws a circle with a diameter of 10 inches.Ethan draws a circle with a diameter that is half as long as the diameter of Emilie's circle.How will the circumference of Ethan's circle compare with the circumference of Emilie's circle?Explain.​

Answers

Answer:

The circumference of Ethan's circle is half the circumference of Emilie's circle

Step-by-step explanation:

we know that

Emilie's circle

[tex]D=10\ in[/tex]

The circumference is equal to

[tex]C=\pi D[/tex]

[tex]C=\pi (10)[/tex]

[tex]C=10\pi\ in[/tex]

Ethan's circle

[tex]D=10/2=5\ in[/tex]

The circumference is equal to

[tex]C=\pi D[/tex]

[tex]C=\pi (5)[/tex]

[tex]C=5\pi\ in[/tex]

therefore

The circumference of Ethan's circle is half the circumference of Emilie's circle

Answer: The circumference of Ethan's circle is half the circumference of Emilie's circle

Step-by-step explanation:

nnnnnnnnnnnnnnnnn



3x -4 = 2

Answers

Answer:

2

Step-by-step explanation:

[tex]\bold{Hey\ there!} \\ \\ \bold{3x-4=2}\\ \bold{First:add\ by\ 4\ to\ your\ sides!}\\ \bold{Like\downarrow}\\ \bold{3-4+4=2+4}\\ \bold{Cancel:-4+4\ because\ it\ = \ 0}\\ \bold{Keep:2+4\ because\ it\ helps\ us\ solve\ for\ our\ answer} \\ \bold{2+4=6} \\ \bold{3x=6} \\ \bold{Second: divide\ by\ 3\ on\ your\ sides!} \\ \bold{Like\downarrow} \\ \bold{\frac{3x}{3}=\frac{6}{3}} \\ \bold{Cancel:\frac{3x}{3}\ because\ it\ gives\ us\ 1} \\ \bold{Keep:\frac{6}{3}\ because\ it\ gives\ us\ the\ answer\ for\ 'x'}[/tex]

[tex]\boxed{\boxed{\bold{Answer:x=2}}}\checkmark\\ \\ \bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!} \\ \\ \\ \frak{LoveYourselfFirst:)}[/tex]

If 2/5 x h = 3, what is H

Answers

Answer:

h = 7 1/2

Step-by-step explanation:

2/5 h = 3

Multiply each side by 5/2 to isolate h

5/2 * 2/5 h = 5/2 *3

h = 15/2

h = 7 1/2

If p x 5/6 = 4, what is p​

Answers

♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫

➷P*5/6=4

First, you need to multiply each side by 6/5 to get ride of the 5/6:

p=24/5

Final answer:

p=24/5

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

TROLLER

Square root of 2y+3=11 what’s the value of y in this equation

Answers

Answer:

y = 32

Step-by-step explanation:

For the given expression √(2y+3) =11, the value of y in this equation is 59.

The given expression is,

√(2y+3) =11

Take square both sides of the equation to eliminate the square root.

This gives us:

(√(2y+3))² = 11²

Simplifying the left side, we have:

2y + 3 = 121

Next, Subtract 3 from both sides to isolate the 2y term:

2y + 3 - 3 = 121 - 3

2y = 118

Finally, Divide both sides by 2 to solve for y:

y = 59

Therefore, the value of y in this equation is 59.

Learn more about the mathematical expression visit:

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Which of the following would be the best example of parallel lines in the real world?
O A. The lines formed on a windowpane
O B. A four-way stop at an intersection
O C. The northbound and southbound lanes on a straight highway
O D. A bridge extending over a river

Answers

C

Because their on a straight highway and the lines go up and down (north and south) and parallel lines is a set of straight lines

Final answer:

The northbound and southbound lanes on a straight highway are the best example of parallel lines, as they never intersect and stay equidistant from each other, fulfilling the criteria for parallelism in geometry which is the option c.

Explanation:

The best example of parallel lines in the real world would be C. The northbound and southbound lanes on a straight highway. In mathematics, parallel lines are two lines in the same plane that do not meet; they stay the same distance apart over their entire length. When we look at the northbound and southbound lanes on a straight highway, they are designed to be straight and run alongside each other without crossing, making them a practical example of parallel lines.

It is important to understand that parallel lines have several key features. They are always the same distance apart (equidistant), and they never intersect or cross each other. This principle is seen in the highway lanes, which must stay separate to facilitate traffic in opposite directions.

To contrast, other options like A. The lines formed on a windowpane may not necessarily be parallel, B. A four-way stop at an intersection involves intersecting lines, and D. A bridge extending over a river can be a single line or may curve, which does not fit the definition of parallel lines.

Simplify 5 – 2x – 3 + x.

Answers

Hey there!

All we have to do is combine like terms. Therefore, your final answer would be 2 - x

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

The expression 5 - 2x - 3 + x simplifies by combining like terms: constants 5 - 3 = 2 and variable terms -2x + x = -x, resulting in 2 - x.

To simplify the expression 5 \'u2013 2x \'u2013 3 + x, we combine like terms. The like terms in this case are constant numbers and the terms with the variable x.

First, combine the constants 5 and -3:

5 - 3 = 2

Next, combine the variable terms -2x and +x:

-2x + x = -x

Therefore, the simplified expression is:

2 - x

Can someone help me with this graph goes down to -10

Answers

Answer:

(5,7)

Step-by-step explanation:

x + 2 = 2x - 3

2x - x = 5

x = 5

When X = 5, Y= 7

Best regards

The points (4, 1) and (x, -6) lie on the same line. If the slope of the line is 1, what is the value of x?


A. x=-3

B. x=3

C. x=9

D. x=11
(Could you also show it step by step please?)

Answers

Answer:

A

Step-by-step explanation:

Calculate the slope m using the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (4, 1) and (x₂, y₂ ) = (x, - 6)

m = [tex]\frac{-6-1}{x-4}[/tex] = 1

m = [tex]\frac{-7}{x-4}[/tex] = 1 ( cross- multiply )

x - 4 = - 7 ( add 4 to both sides )

x = - 3 → A

The value of 'x' is -3 and this can be determined by using the two point slope formula and also by using the given data.

Given :

The points (4, 1) and (x, -6) lie on the same line.The slope of the line is 1.

When two points are given then to determine the slope of the given line below formula can be used:

[tex]\rm m = \dfrac{y_2-y_1}{x_2-x_1}[/tex]

where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the points on the same line.

Now, substitute the value of slope m and points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] in the above equation in order to determine the value of 'x'.

[tex]\rm 1 = \dfrac{-6-1}{x-4}[/tex]

x - 4 = -7

x = -3

So, the value of x is -3.

For more information, refer to the link given below:

https://brainly.com/question/18666670

solving systems of Equations Word Problems - CLASSWORK

1. To rent scooters, Sam's Scooters charges a $30 fee plus $8 per hour. Rosie's charges a $20 fee
plus $10 per hour.

Independent variable (x):

Dependent variable (y):

System of equations:

Points on the graph:

QUESTIONS.

A. when does it make more sense to rent a scooter from Rosie's? How do you know?

B. when does it make more sense to rent a scooter from Sam's? How do you know?

C. Is there ever a time where it wouldn't matter which store to choose? Explain.

D. If you were renting a scooter from Rosie's, how much would you pay if you were planning on renting for 7 hours? show your work.

Answers

Answer:

Part A) For the number of hours less than 5 hours it make more sense to rent a scooter from Rosie's

Part B) For the number of hours greater than 5 hours it make more sense to rent a scooter from Sam's

Part C) Yes, for the number of hours equal to 5 the cost of Sam'scooters is equal to the cost of Rosie's scooters

Part D) The cost is $90

Step-by-step explanation:

Let

x-------> the number of hours (independent variable)

y-----> the total cost of rent scooters (dependent variable)

we know that

Sam's scooters

[tex]y=8x+30[/tex]    

Rosie's scooters

[tex]y=10x+20[/tex]

using a graphing tool

see the attached figure

A. when does it make more sense to rent a scooter from Rosie's? How do you know?

For the number of hours less than 5 hours it make more sense to rent a scooter from Rosie's  (see the attached figure) because the cost in less than Sam' scooters

B. when does it make more sense to rent a scooter from Sam's? How do you know?

For the number of hours greater than 5 hours it make more sense to rent a scooter from Sam's  (see the attached figure) because the cost in less than Rosie' scooters

C. Is there ever a time where it wouldn't matter which store to choose?

Yes, for the number of hours equal to 5 the cost of Sam'scooters is equal to the cost of Rosie's scooters. The cost is $70 (see the graph)

D. If you were renting a scooter from Rosie's, how much would you pay if you were planning on renting for 7 hours?

Rosie's scooters

[tex]y=10x+20[/tex]

For x=7 hours

substitute

[tex]y=10(7)+20=90[/tex]

The cost is $90

When renting a scooter, the independent variable is the number of hours rented, and the dependent variable is the total cost. Renting from Rosie's is cheaper after 10 hours, while renting from Sam's is cheaper for fewer than 10 hours. There is no cost difference at exactly 10 hours, and renting from Rosie's for 7 hours would cost $90.

To solve systems of equations word problems involving rental costs for scooters from two different companies, we must first establish a system of equations to represent each company's pricing structure. For Sam's Scooters, the equation is y = 30 + 8x, where y is the total cost to rent a scooter and x is the number of hours the scooter is rented. For Rosie's, the equation is y = 20 + 10x.

The independent variable (x) is the number of hours the scooter is rented, and the dependent variable (y) is the total cost of the rental.

Questions:

Renting from Rosie's makes more sense when the cost at Rosie's (y = 20 + 10x) is less than the cost at Sam's (y = 30 + 8x). This happens when x > 10, which means after renting for more than 10 hours.Renting from Sam's makes more sense when x < 10, renting for fewer than 10 hours.There is a time where it wouldn't matter which store you choose, and that is exactly at 10 hours, at which both stores would charge the same.If you were renting a scooter from Rosie's for 7 hours, the total cost would be y = 20 + 10(7) = 20 + 70 = $90.

Please need help on this

Answers

Answer:

284.37

Step-by-step explanation:

If you use the pythagorean theory, it's so much easier

The distance of the earth's horizon from point p is 284.372 miles.

Pythagoras Theorem

In a right-angled triangle,  the square of the hypotenuse side is equal to the sum of squares of the other two sides [tex]Hypotenuse^{2} = Perpendicular^{2} + Base^{2}[/tex]

How to find the distance between earth and point p?

Here also we have a right angle triangle so to find the remaining side we use Pythagoras Theorem.

[tex]3959^{2} + x^{2} =(3959+10.2)^{2}[/tex]

[tex]3959^{2} + x^{2} = (3969.2)^{2}[/tex]

[tex]x^{2} = 80867.64[/tex]

x = 284.372 miles

Thus the distance of the earth's horizon from point p is 284.372 miles.

Learn more about Pythagoras Theorem here: https://brainly.com/question/231802

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please help with explanation​

Answers

Answer:

m = 1/3

Step-by-step explanation:

The equation of a straight line is given by the equation of the form;

y = mx+c

The slope of the line is simply the coefficient of x in the equation, m in this case. The given equation can be re-written as;

y = 1/3 x + 4

The coefficient of x is 1/3 which is also the slope.

Please Help!!!!

x 2 - 5x - 14

Answers

Answer:

(x-7)(x+2); x = -2, 7

Step-by-step explanation:

Solve the equation by factoring and setting each factor equal to 0.

The expression x² - 5x - 14 factors into two numbers which multiply to -14 and add to -5. These numbers are -7 and 2. The factors are (x-7)(x+2). Set each equal to 0 and solve.

x-7 = 0

x = 7

x+2 = 0

x = -2

What is the value of x in the graph below? PLEASE SHOW WORK

Answers

Answer:

Your answer is B.

Step-by-step explanation:

4 x 2 = 8

I know this because 12 / 6 = 2.

Therefore, Sense it is divided by two, you multiply the 4 by 2.

on an airplane, there are two seats on the left side in each row and three seats on the right side. There are 57 seats on the right side of the plane how many seats are on the left side of the plane?

Answers

Answer:

Answer: 38 Seats

Step-by-step explanation:

What would be the sum of the lengths of the first and second diagonals rounded to the nearest whole number?

Answers

Answer:

16.17684994

Step-by-step explanation:

First diagonal

x^2 = a^2 + b^2

x^2 = 5^2 + 6^2

x^2 = 61

x ≈ 7.810249676

Second diagonal

x^2 = a^2 + b^2

x^2 = 7.810249676^2 + 3^2

x^2 = 70

x ≈ 8.366600265

Sum of both diagonals

8.366600265 + 7.810249676

= 16.17684994

Answer:

16

Step-by-step explanation:

i just know

the img has the info

Answers

Answer:

56°

Step-by-step explanation:

Because the two lines are parallel, the corresponding angles are equal. The two corresponding ∠s are ∠A and ∠B. ∠A=∠B

∠A=4x

∠B=2(x+14)

4x = 2 (x+14)

the right side requires the distributive property

a) 4x = 2x+28

2x = 28

x = 14

b) now plug in x for both ∠s to find ∠A and ∠B

∠A = 4x = 4(14) = 56°

∠B = 2(x+14) = 2(14+14) = 2(28) = 56°

I just did both angles to show that they are equal and it is a way to check your work

The diagram below shows a square inside a regular octagon. The apothem of the octagon is 13.28 units. To the nearest square unit, what is the area of the shaded region?

Answers

463 square units. ok

Answer:

The correct option is:  A.  463 square units.

Step-by-step explanation:

According to the given diagram, the side length of the regular octagon is 11 units.

So, the perimeter[tex](p)[/tex] of the octagon [tex]=(11\times 8)units= 88\ units[/tex]

The apothem[tex](a)[/tex] of the octagon is 13.28 units.

So, the area of the octagon:  [tex]A=\frac{1}{2}pa=\frac{1}{2}(88)(13.28)=584.32\ units^2[/tex]

Now, the side length of the inside square is 11 units. So, the area of the square  [tex]=(11)^2 =121\ units^2[/tex]

Thus, the area of the shaded region [tex]=(584.32-121)units^2=463.32\ units^2 \approx 463\ units^2[/tex]

Help me with this please

Answers

Answer:

Look for where both functions have the same y value. For example, when x = 3 in #7, both are 5. So the solution is (3,5).

Step-by-step explanation:

Each table has two functions. This forms a system of equations. A system of equations is essentially two conditions that must both be met to produce a solution. A solution can be found as where the two equations are equal. In the table, look for where both functions have the same y value for some x. This will be where the values are the same in the same row. This is the solution and is written as an (x,y) point.

7. When x = 3 both functions are 5. The solution is (3,5).

The base of a square pyramid has a side of 12 m. The slant height of a pyramid is 8 m. Find the lateral area of the pyramid.
Options are in image...

Answers

Answer:

Option A. [tex]192\ m^{2}[/tex]

Step-by-step explanation:

we know that

The lateral area of the square pyramid is equal to the area of its four triangular faces

so

[tex]LA=4[\frac{1}{2}(12)(8)]=192\ m^{2}[/tex]

Given: m∠AOB = 35°, m∠BOC = 50°. Find: m∠FOD.

Answers

Answer:

∠FOD = 85°

Step-by-step explanation:

∠AOC = ∠AOB + ∠BOC = 35° + 50° = 85°

∠AOC and ∠FOD are opposite angles and congruent, hence

∠FOD = 85°

What is the area of medium pizza with 10 inches

Answers

Answer:

A: 25[tex]\pi[/tex]

Step-by-step explanation:

The area for a circle is:

A = [PI*d^2] / 4

Then

A = (25/2)*[tex]\pi[/tex]

Best regards

La altura de un trapecio isósceles es de 4 cm, la suma de las medidas de las bases es de 14 cm y los lados oblicuos miden 5 cm. Averigua las medidas de las bases del trapecio.

Por favor, necesito ayuda.

Answers

Teorema de Pitagoras a^2 + b^2 = c^2
4^2 + b^2 = 5^2
16 + b^2 = 25
- 16. -16
b^2 =. 9
b = 3

Si el fondo base mide mas que el superior base, miden 14 (fondo) y 14 - 3 (izquierda) -3 (derecho) = 8

write an example of constant polynomial​

Answers

Answer:

One example of constant polynomial is q(x) = 7.

Step-by-step explanation:

A constant polynomial is the same thing as a constant function. That is, a

constant polynomial is a function of the form

p(x) = c

In other words a polynomial P(x) that, when evaluated over each x in the domain of definition, results in the same value. The simplest example is P(x)=c for x in R and c a constant.

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