Find the expected value of the
random variable with the
following probability distribution:
Х
2
3
4
5
6
7
8
9
10
11
12
Р
1/36
1/18
1/12
1/9
5/36
1/6
5/36
1/9
1/12
1/18
1/36
[?]

Answers

Answer 1

Answer:

1/36 hope this helps

Step-by-step explanation:

Marla's brainlist pls


Related Questions

Someone for the love of god please help me.

Answers

X>2 is the correct solution to the inequality:)

Answer:

Step-by-step explanation:

what is the range of f? ​

Answers

Answer:

[-4,5]

Step-by-step explanation:

you look on the starting point and the ending point of the y-axis ( you always start with the smallest value)

Anita is surveying students in her classroom about their favourite foods. Her survey results so far are shown below. Use fractions to answer the question.

What fraction of the students prefers either ice cream or pizza?

Type of Food: Fraction of Students Who Prefer the Food:

Fruit 1/12
Ice cream 1/3
Pizza 1/4
Other ?

Answers

Answer:7/12

Step-by-step explanation:fruit = 1/12 ice cream= 4/12 pizza=3/12 other must equal the remaining 4/12 btw and pizza plus ice cream is 4/12+3/12 = 7/12

State if the two triangles are congruent, if they are state how you know.

A. SSS
B. HL
C. LL

Answers

Answer:

I belive it would be HL because its defenitly not SSS

Step-by-step explanation:

HL Postulate is if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent.

You have $22 to spend on four raffle tickets. After buying them you had $6. How much did each raffle ticket cost?

Answers

Answer:

$4 each

Step-by-step explanation:

Answer:

each ticket cos $4

Step-by-step explanation:

because is you multiply 4 × 6 is 16

and 22-16=6

HELP ME PLEASEEE!
Write the equation of the linear function displayed in the graph below in slope intercept form. *

Answers

The answer is -1,3 ok ok

i need help on this question about slope

Answers

(-2,0)
(0,-2)
slope= -2-0/0-(-2)
slope=-2/2
slope=-1

What is 400 x 29 can you please solve thank you

Answers

Answer:

11,600

Step-by-step explanation:

calculated

Answer: 400 x 29=  11,600

6. A person can order a new car with a choice of 11 possible
colors, with or without air conditioning, with or without
heated seats, with or without anti-lock brakes, with or
without power windows, and with or without a CD player. In
how many different ways can a new car be ordered in terms
of these options?
A) 352
B) 704
C) 22
D) 176

Answers

176 should be around the answer

A number rounded to the nearest tenth is 0.6. which could be the original number before rounding?
Answers:
0.68
0.52
0.57
0.69

Answers

Answer:

3rd choice 0.57

Step-by-step explanation:

when rounding to the tenth place we look at the hundreds place and when it greater than or at 5 we round up and when it's less than 5 we round down.

1) explanation:0.7 when rounding to the tenth place. since the 8 was greater than 5 we round-up and get 0.70.

2)explanation: 0.5 when rounded to the tenth place the hundreds place which is 2 is less the 5 so we round down and get 0.50.

3)explanation: 0.6 when rounded its hundreds place is greater than 5 so we round up and get 0.60.

4)explanation: 0.7 when rounding to the tenth place. since the 9 was greater than 5 we round-up and get 0.70.

hopes this help you

change the following number into fraction 1.57 recurring​

Answers

Answer:

Step-by-step explanation:

1.57

=157/100 answer

A rectangle is 3 times as long as it is wide. The perimeter is 120 cm. Find the dimensions of the rectangle. Round to the nearest tenth if necessary.

Answers

The rectangle is 15cm by 45cm
2(3x)+2(x)=120
6x+2x=120
8x=120
X=15
3(15)=45

#2: Solve the linear system below using the elimination method. Type your
answer as an ordered pair in the form (#,#). *
-3x + 5y = -32
7x – 4y = 67

Answers

Answer:

[tex](9,-1)[/tex]

Step-by-step explanation:

Follow the same guidelines from the other answer. Hope this helps!!

Find the value of n so that PQRS is an isosceles is an isosceles trapezoid

Answers

Answer:

n=7.5°

Step-by-step explanation:

As the two lines are parallel do the equation is

(10n+19)+(12n-4)=180

10n+19+12n-4=180

22n+15=180

22n=180-15

22n=165

n=165/22

n=15/2

n=7.5

n=7.5°

Answer: it’s 11.5

Step-by-step explanation: I got it right

whats 255x67777675456745675676745

Answers

Answer: 1.728330724e+25 thats what it said when I calcuated it.

what is the value of the ratio 4:5

Answers

Answer:

You might need to be more specific, it could be 4 puppies to 5 dogs, or 4 apples to 5 oranges or 4 cups of flour to 5 cups of flour.

Step-by-step explanation:

The value of 4:5 is 4 for every 5 like 4 cups of sugar for every 5 cups of flour

The simplified form of ratio 4:5 is 0.8. The ratio is given in the form of p/q.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

It is given that the ratio is 4:5.

To convert mixed numbers into improper fractions, when A is the numerator or B is the denominator,

If either A or B is a decimal number, multiply both of their values by the same factor of 10, which will remove all decimal places.

If one value is a whole number and the other is a fraction, you should try to reduce the fraction to a whole number or convert the whole number to a fraction by giving it a denominator of 1.

= 4 / 5

We have to apply the division operation in which we have to divide the number 4 by 5 in order to obtain the improper fraction values as,

=0.8

Thus, the simplified form of ratio 4:5 is 0.8. The ratio is given in the form of p/q.

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ2

Write an equivalent multiplication expression. Then, find the quotient in its simplest form. Use a model to support your response. 1 4 ÷ 2 and 2 3 ÷ 6

Answers

Step-by-step explanation:

Let the integers be a, b and c. To model the expression generally;

[tex]\dfrac{a}{b} \div c = \dfrac{a}{b} \times \dfrac{1}{c}\\= \dfrac{a}{bc}[/tex]

Using the model to solve the following expression given

a)  [tex]\dfrac{1}{4} \div 2[/tex]

[tex]= \dfrac{1}{4} \times \dfrac{1}{2}\\= \dfrac{1}{4*2}\\= \dfrac{1}{8}[/tex]

b)

[tex]= \frac{2}{3} \div 6 \\= \dfrac{2}{3} \times \dfrac{1}{6}\\= \dfrac{2}{3*6}\\\\= \dfrac{2}{18}\\= \dfrac{2}{9}[/tex]

Can someone please help me with my homework !!

Answers

The top left question is -1. The top middle question is -50. The top right question is 9. The bottom left question is -2x+23. The bottom middle question is 7x-28. The bottom right question is Option d or between -7 and -8:)

PLEASE HELP!! I’LL GIVE BRAINLIEST AND 10 POINTS !! FOR THE CORRECT ANSWER

Answers

Answer: -9

Step-by-step explanation:

You count down the distance from T to K

Answer:

-9

Step-by-step explanation:

you are counting from t to k but its going to the left of the number line to its negative.

If you want to buy an item in a store that costs $32.50 and is on sale for 30% off, then how much would the item actually cost you after the discount? Round to the nearest cent.​

Answers

Answer:

$22.75

Step-by-step explanation:

if you multiply $32.50 * 30% you get $9.75

32.50-9.75=$22.75

Answer:

$22.75

Step-by-step explanation:

Convert percent to decimal:

30%=30/100=0.3

Percent formula:

a(1-r)

a(1−r)

32.5(1-0.3)

32.5(1−0.3)

32.5(0.7)

32.5(0.7)

22.75

22.75

Price after discount:

$22.75

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Answers

Answer:

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Step-by-step explanation:

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

x^2-4x+3=0 complete the square

Answers

Answer:

x^2-4x+3=0
Move the constant to the right
x^2-4x=-3
Add (4/2)^2 to both sides
x^2-4x+(4/2)^2=-3+(4/2)^2
Factor
(x-4/2)^2=1
Reduce the fraction
(x-2)^2=1

x=1

x=3

x1=1, x2=3

As per the quadratic equation, the given equation can be modified into    (x - 2)² = 1. The value of x is 3, 1.

What is a quadratic equation?

A quadratic equation is an equation where the variable has the highest degree of 2. A quadratic equation might have more than one variable. However, the highest degree of any variable must be 2.

Given equation: x² - 4x + 3 = 0

⇒ x² - 4x + 3 + 1 = 1          (By adding 1 on either side)

⇒ x² - 4x + 4 = 1

⇒ x² - 2 × x × 2 + 2² = 1

⇒ (x - 2)² = 1

⇒ x - 2 = ±1

⇒ x = 3, 1

Learn more about a quadratic equation here: https://brainly.com/question/1603229

#SPJ2

how do you fing the missing angle from a triangle​

Answers

Answer

Law of Sines

Step-by-step explanation:

If you have all three side lengths, you can use law of sines.

side length a/sin of angle a=side length b/sin of angle b=side length c/sin of angle c

not sure if that makes sense but look up the law of sines!

Given the points (6, -6) and (1,7) find the slope.

Answers

Answer:

Step-by-step explanation:

m= rise over run

m= -13/5

Anwser: -13/5

Step-by-step explanation:

use the slope formula

y2-y1/x2-x1

mark your points(makes it easier)

(6,-6) (1,7)

x1. y1. x2 y2

plug in your points

(7-(-6)

1-(6)

= -13/5 (slope)

The larger nail is a dilation of the smaller nail.



Select all statements that are true.

Answers

Answer: the scale factor is 3/4

Step-by-step explanation:

Answer:

whats the rest of the answer?

Step-by-step explanation:

Which expression would represent the cost of one CD, if the total cost for three of them is $362
3/36)
36-3
36
3+ 36

Answers

Answer:

One CD would've been 120.67

Someone correct me if I'm wring please

I NEED HELP AGAIN PLEASE!!

Answers

Answer:

A

Step-by-step explanation:

What is the equation of the line that passes through the point (8,4) and has a slope of 3/2 ?

Answers

Answer:

y = [tex]\frac{3}{2}[/tex] x - 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = [tex]\frac{3}{2}[/tex] , thus

y = [tex]\frac{3}{2}[/tex] x + c ← is the partial equation

To find c substitute (8, 4) into the partial equation

4 = 12 + c ⇒ c = 4 - 12 = - 8

y = [tex]\frac{3}{2}[/tex] x - 8 ← equation of line

The equation of a line that has a slope of 3/2 and passes through (8, 4) can be written as:

[tex]y - 4 = \frac{3}{2} (x - 8)[/tex] (point-slope form) or

[tex]y = \frac{3}{2}x - 8[/tex] (slope-intercept form).

Given:

a point on a line: (8, 4)

slope of the line: 3/2

The equation of the line can be written in either point-slope form or slope-intercept form.

First, let's write the equation in point-slope form since we know one of the points and the slope.

Point-slope equation takes the form: y - b = m(x - a)

Where,

(8, 4) = (a, b), andm = 3/2

Substitute

[tex]y - 4 = \frac{3}{2} (x - 8)[/tex] =>> point-slope form.

Also, we can rewrite in slope-intercept form as follows:

[tex]y - 4 = \frac{3}{2} (x - 8)[/tex]

Open bracket

[tex]y - 4 = \frac{3}{2}x - 12[/tex]

Add 4 to both sides

[tex]y - 4 + 4 = \frac{3}{2}x - 12 + 4\\\\y = \frac{3}{2}x - 8[/tex](slope-intercept form)

Therefore, the equation of a line that has a slope of 3/2 and passes through (8, 4) can be written as:

[tex]y - 4 = \frac{3}{2} (x - 8)[/tex] (point-slope form) or

[tex]y = \frac{3}{2}x - 8[/tex] (slope-intercept form).

Learn more here:

https://brainly.com/question/13967935

2x+5y=-13
3x-5y=14

Solve for x and y

Answers

Answer:

I got x= 1/5 and y= -67/25 (sorry if it is wrong)

Answer:

x= 1/5

y= −67/25

Step-by-step explanation:

If you need help with these sorts of problems, go to math papa.

Insert a question... for example, this question you would type in

"2x+5y=-13;3x-5y=14"

This helps a bunch with a variety of math questions. I also recommend using mathaway!

On Monday the temperature was 3 degrees below 0 on Tuesday the temperature was 7 degrees what was the change in temperature

Answers

Answer:

10 degrees

Step-by-step explanation:

7 - (-3) = 7+3 = 10 degrees

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