Maria believes that she will get a 1 hit in 10% of her softball games, 2 hits in 30% of her games, 3 hits in 55% of her games, and 4 hits in 5% of her games. About how many hits can Maria expect to have each game

Answers

Answer 1

According to the probability or likelihood , Maria can expect 2 hits in the game.

What person founded probability?

Blaise Pascal and Pierre de Fermat are recognized as the fathers of probability because they laid the foundation for the field by thinking through a gambling issue posed by Chevalier de Mere in 1654.

[tex]E(X)=x.P(X=x)[/tex]

Given,

[tex]P(X=1)=0.20\\P(X=2)=0.25\\P(X=3)=0.50\\P(X=4)=0.05\\[/tex]

putting in formula,

[tex]E(X) = (1*0.20)+(2*0.25)+(3*0.50)+(4*0.05)=2.4[/tex]

As the number can not be fraction, hence number of hit will be 2.

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Related Questions

what must be true for (m+p) so that the value of the expression below is negative? Explain.

-2 + (m + p)

Answers

For the expression to be negative (m + p) < 2.

What is an expression?

An expression is a group of terms and mathematical symbols which can be evaluated to a given value.

How to determine what must be true for (m+p)?

Since we have the expression -2 + (m + p), we need to determine the value of (m + p) for which the value of the expression is negative.

This implies that the value of the expression is less than zero.

So, we proceed as follows.

Since the expression is -2 + (m + p), for it to be negative, it must be less than zero.

So, -2 + (m + p) < 0

⇒ -2 < -(m + p)

Dividing both sides by -1, we have that

-2/-1 < -(m + p)/-1

2 > (m + p)

(m + p) < 2

So, for the expression to be negative (m + p) < 2.

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What are the values of trigonometric ratios?

Answers

three main trigonometry ratios are sin ,cos and tan.

1- Sine or sin θ = perpendicular / Hypotenuse .

2- Cosines or cos θ = base of triangle / Hypotenuse .

3- Tangent or tan θ = perpendicular of triangle / base of triangle.

Trigonometry

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Trigonometric values are based on the angle theta and the values of the sides of triangle in which the theta angle is made.

for example - value of sin theta is equal to the side opposite to the theta angle divided by hypotenuse of the triangle and we will get the values of the sin trigonometric ratio.

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A triangle has side lengths of (4b−5c) centimeters, (9b+10d) centimeters, and (6d−8c) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Answers

Combine like terms would be 13b cm - 13c cm + 16d cm

Find the volume of the prism.
1.2 cm
1.8 cm
2 cm
2.3 cm
The volume is
cubic centimeters.

Answers

Answer:

Volume of prism = 6.3 cm³

Step-by-step explanation:

Given:

Dimensions of parallels line = 2.3 and 1.2 cm

Height of prism = 1.8 cm

Width of prism = 2 cm

Find:

Volume of prism

Computation:

Volume of prism = Area of base x Width

Volume of prism = [(1/2)(sum of parallels line)(Height)]Width

Volume of prism = [(1/2)(2.3 + 1.2)(1.8)]2

Volume of prism = [(1/2)(3.5)(1.8)]2

Volume of prism = [(3.5)(1.8)]

Volume of prism = 6.3 cm³

please help I'll give a crown if you answer correctly.​

Answers

Answer:

2) 1. 73

   2. 107

   3. 73

   4. 107

   5. 73

   6. 107

   7. 73

  8. 107

4) 1. 46  

   2. 134

   3. 46

   4. 134

   5. 46

   6. 134

   7. 46

   8. 134

Step-by-step explanation:

Vertical, corresponding, alternate exterior, and alternate interior angles are all congruent (equal).Angles such as same side exterior and same-side interior are supplementary; meaning these angles add up to 180°.

May somebody help me.

Answers

Answer:

d

Step-by-step explanation:

it keeps going up by 2 and 2x2 is 4 4x2 is 8 so on?

help me out here plz, can u solve this problem and ill give u 10 points.

Answers

Answer: the first one, 2^3x 3^2, correct me if i am wrong

Step-by-step explanation:

Answer:

2^3*3^2

Step-by-step explanation:

What is the value of x in this equation?

−4x+8=42

Answers

Answer:

x = -8.5

Step-by-step explanation:

-4x+8=42

first subtract both sides by 8

-4x = 34

divide both sides by negative 4

x = -8.5

X=-8.5

-4x+8=42
-8. -8
-4x=34
~. ~
4. 4

X=-8.5

HELP HELP HELP I NEED HELP ASAP
How Do I answer this question

Answers

Answer:

You say help is no more

Step-by-step explanation:

There is no question

please i really need help! anything will help at the moment

Answers

Answer:

-2 i think hope this helps

Step-by-step explanation:

Keith ordered a hamburger for $2.25, a medium raspberry ice tea for $1.25, and a small sundae for $0.99. He also ordered French fries. All of these items totaled $6.24. What was the cost of the French fries?

Answers

The fries costs $1.49

What is addition?

Addition in math is a process of combining two or more numbers.

Given that, Keith ordered a hamburger for $2.25, a medium raspberry ice tea for $1.25, and a small sundae for  $1.25. He also ordered French fries. All of these items totalled $6.24.

Let the price of fries be x,

Therefore,

$2.25 + $1.25 + $1.25 + x = $6.24

$4.75 + x = $6.24

x = $6.24 - $4.75

x = $1.49

Hence, the fries costs $1.49

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Use the distributive property to simplify each expression.

-2(x - 2) + 5x

please help

Answers

Answer:

3x + 4

Step-by-step explanation:

Using the distributive property simply means that when there is a number in front of a pair of parentheses, every value inside the parentheses is multiplied by the co-efficient to expand the parentheses.

Here, the coefficient is -2, therefore we multiply both terms inside the parentheses (x and -2) by -2 to expand them:

-2(x - 2) + 5x

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

Now we simply evaluate and combine like terms to simplify:

= -2x +4 +5x

= 3x + 4

Which scenario can be best represented by the equation y = 139x + 200?

Answers

Since you didn't offer potential answer choices, here's a sample answer which would work for this scenario. Using this, you can compare it to the choices that you have to make a decision.

Sample Answer:

Bob opened savings account with $200. Every week since, he has added $139 into it.

is triangle ABC similar to CDE?​

Answers

Answer:Yes

?=6



Step-by-step explanation:

they sare the same angle 55 and angle

Answer:

Triangle ABC is similar to triangle CDE

?=8

Step-by-step explanation:

We can set up a proportion: x/12=8/12. We can use cross multiplication to get 12x=96 which would x=8.

The triangles are similar since both of them have 55 degrees as one of the angle measures.

Are machines faster and better at calculating a math equation than mans?

Answers

Answer:

MIT economics professor Richard Bookstaber put it simply in his book “The End of Theory”: “No man is better than a machine, and no machine is better than a man with a machine.” ... Humans are too emotion-driven and susceptible cognitive biases, while machines lack an understanding of human thinking.

Answer:

yesThe Liverpool researchers estimate that the robot is able to work 1,000 times faster than a human scientist, and highlight that it is “unlikely a human researcher would have persevered with this multivariate experiment using manual approaches given that it might have taken 50 experiments or 25 days

In 2010, the population of a city was 191,000. From 2010 to 2015, the population grew by 3.9%. From 2015 to 2020, it fell by 3.3%. To the nearest 100 people, what was the population in 2020?

Answers

Answer:

The population by 2020 is 191,900

Step-by-step explanation:

Given that;

population 2010 (population in 2010): 191000

the population grew from 2010 to 2015: by 3.9%

so, population by 2015 = [tex]191000(1 + \frac{3.9}{100})[/tex]

                                      = [tex]191000(1 + 0.039)[/tex]

                                      = [tex]191000(1.039)[/tex]

                                      = [tex]198449[/tex]

the population drop from 2015 to 2020: 3.3%

so, population by 2015 = [tex]198449(1 - \frac{3.3}{100})[/tex]

                                      = [tex]198449(1 - 0.033)[/tex]

                                      = [tex]198449(0.967)[/tex]

                                      = [tex]191,900.183[/tex]

Miu will solve the system of equations below using the elimination method.
(2x - 3y = 4
x + y = 1
Which of the following describes the appropriate first steps to solve the system of equations by the elimination method?

Answers

Answer:

D.

Step-by-step explanation:

-2(x+y)=-2*1

-2x-2y=-2

2x-3y=4

-5y=2

y=-2/5

Anna's hair has grown
2
3
of an inch in the 6 weeks since her last haircut. How fast does her hair grow?

Answers

Her hair grows 1/9th of an inch. Hope this helped you

Answer:

Her hair grows 1/9th of an inch. Hope this helped you

Step-by-step explanation:

Each shape is 1 whole. For numbers 13a–13e, choose Yes or No to show whether the number names the parts that are shaded

Answers

In each shape there are 4 wholes hence the answer is yes.

What are fractions?

A fraction is referred to as the portion of a whole in mathematics. There are two components to a fraction: a numerator and a denominator. The numerator is the number at the top, and the denominator is the number at the bottom.

13a. There are 4 wholes, hence the answer is yes.

13b. Every whole is divided into 2 parts hence the total number of equal parts is 4 *2 = 8. Hence the answer is yes.

13c. The answer is yes.

13d. No

13e. No

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The sum of 5 times a number and 3 is 7.

Use the variable y for the unknown number.

PLEASE HELP!!!​

Answers

Answer:

5y+3=7

Step-by-step explanation:

PLEASE HELP I DON'T GET IT, MATH

Answers

Answer:

can any of u pls help me abt would u evër reach the end of the earth and y pls

NEED ANSWER ASAP GIVING 15 PTS!!! TEST DUE IN 5 MINS!!!
Given the rule y=12x−4 complete the table below.

Answers

Answer:

(-4,-52)

(1/12,-3)

(1/3,0)

(0,-4)

(3,32)

Step-by-step explanation

i think thats right

Tues
1.There were 32 brown ducklings at a pond. Twice as
many white ducklings arrived., 1/2 of the brown ducklings
flew away. How many ducklings are there now, at the
pond?

Answers

Answer:

80 ducks (16+64)

Step-by-step explanation:

So if there were 32 brown ducks in the pond at first, then twice the amount of brown ducks (32).

32x2=64 white ducks

So now their are 64 white ducks at the pond. We still have to add how many brown ducks their were so…

64+32=96 ducks in total

But then as the white ducks came in half of the brown ducks flew away.

32/2=16 brown ducks left in the pond.

Lastly add the remaining brown ducks with the white ducks and that is you answer!
16+64=80 total amount of ducks

Final Answer:

80 ducks

I hope this helps! I am sorry if I got it wrong!

Write an expression equivalent to 4-2(x+5) that has two terms

Answers

Answer:

-2x - 6.

Step-by-step explanation:

4 - 2(x + 5)

= 4 - 2x - 10

=  -2x - 6

Answer:

-2x - 6

Step-by-step explanation:

a line from the top of a building to the ground passes over a 9 m pole and reaches the ground at point 15 m from the base of the pole. if the pole is 12 m from the base of the 16.2 m building, is the pole parallel to the building?​

Answers

Answer:

yes

Step-by-step explanation:

need help asap!!!! will give brainliest!

Answers

Answer:

Y = 3 [tex]\sqrt{2}/2[/tex] And x = 3

Step-by-step explanation:

Because this is a 45 to 45 degree triangle, the 3 * (square root of 2 )/2 is y as well. Because this is a 45-45 triangle, x should be y (Square root of 2). Therefore, replacing y with 3 * (square root of 2 )/2 and multiply the square root of 2, the answer for x is 3. If I got something wrong please tell me, thanks.

Is the second side “LK and HI” or the other way around?

Answers

Answer:

They aare both the same

Step-by-step explanation:

Pretty sure it would be written like LK and HI for the second side

Solve the quadratic by factoring. 3x^{2}+7=-8x+3 3x 2 +7=−8x+3

Answers

The roots of the given quadratic equation are x = -2/3 and x = -2.

What is a quadratic equation?

A quadratic equation is a equation that is of the form -

y = f{x} = ax² + bx + c

Given is a quadratic equation as follows -

3x² + 7 = - 8x + 3

The given quadratic equations are -

3x² + 7 = - 8x + 3

3x² + 8x = 3 - 7

3x² + 8x + 4 = 0

(x + 2/3)(x + 2) = 0

(x + 2/3) = 0   and   (x + 2) = 0

x = -2/3   and   x = -2    

Therefore, the roots of the given quadratic equation are x = -2/3 and x = -2.

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Ason is organizing the silverware drawer. He has 8 spoons. There are twice as many forks as spoons. There are 34 as many knives as forks. How many knives does Jason have

Answers

The result of two Newton's technique iterations to approximation a function's zero using the provided starting guess is 1.5262!

What is a formula that is iterative?

Iteration describes carrying out a process repeatedly. To get a new value, start with an initial value and enter it into the iteration formula. To solve an equation using iteration, apply the new value for the subsequent substitution after that, and so on.

By Newton's Method, we have new guess of a zero of a function that are f(x), xn+1, and by using the previous guess, xn, like so-

xn+1 = xn - f(xn)/f'(xn)

and herethe case is [tex]f(x) = cos(x), and so f'(x) = -sin(x).[/tex]

Also, furthermore, [tex]cos(x)/(-sin(x)) = -cot(x).[/tex]

here, we have to simplify the formula to get a better guess for a zero to: xn+1 = xn + cot(xn)

[tex]x1 = 0.6, so x2 = 0.6 + cot(0.6) = 2.06170...\\And x3 = 2.06170... + cot(2.06170...) = 1.52615...\\Ans = 1.5262![/tex]

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PLEASE HELP ASAP!!! will mark

Answers

Answer:

x=3 or x=5

Step-by-step explanation:

The answer is where the graph line curve cuts the x-axis (the horizontal line)

it cuts at 3 and 5

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