Mathematics Middle School

1) Event A: Flipping heads on a coin
Event B: Rolling an odd number on a number cube
What is P(A and B)?

2) What is the probability of rolling an even number on a number cube and spinning red or yellow on the spinner shown?

3) A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 9 and 8. What is the probability that the third digit is 7?

4) What is the probability of spinning yellow on both spinners?

5) A locker combination has two nonzero digits, and the digits can be repeated. The first number is 3. What is the probability that the second number is 3?

ANSWER ALL 5 QUESTION!!

Answers

Answer 1

Answer:

1.B

2.i dont know

3. good

4.Good

5.Good

Step-by-step explanation:

Related Questions

PLEASE HELP!!!!
I Literally have NO IDEA what I am doing

Answers

Answer:

the answer is A. -.613x+4.142

Step-by-step explanation:

I used desmos (a graphing calculator website) to graph the points and the line. See attachments

Answer:

(a) y = -.613x +4.142

Step-by-step explanation:

You want the equation of the line of best fit for the given data.

Line of best fit

The line of best fit will minimize the sum of the squares of the residuals. Those are the differences between the actual data value and the data predicted by the line.

The slope of the line of best fit is the ratio of the covariance of x and y to the variance of x. The line goes through the point (µx, µy). There are several ways you can arrive at the equation for the line of best fit:

use the linear regression function of a spreadsheet or calculatorfind the slope and intercept from means and variancesuse formulas for the slope and intercept"eyeball" a reasonable line through the plotted data.

Calculator

Many graphing calculators, and all spreadsheets, have functions for computing a line of best fit for a data set. The first attachment shows the linear regression function results for a TI-84 work-alike calculator app. It shows you the equation of the line is approximately ...

y = ax +b = -0.613x +4.142 . . . . . . matches the first choice

The second attachment shows the same result achieved using the correlation and mean functions provided by the calculator. Again, it tells you the equation is ...

y = -0.613x +4.142

Choices

If you examine the given data, you see that generally as x gets larger, y gets smaller. This tells you the line has a negative slope, eliminating choices C and D.

The point (x, y) = (0, 4) tells you the y-intercept is positive, and near +4. This eliminates choice B.

The only reasonable choice among those offered is choice A.

Additional comment

We have not shown the formulas for the parameters of the line of best fit. The usual formulas for variance, covariance, and mean apply. There are a number of different ways these can be calculated, some easier than others, depending on the calculator being used. For a multiple-choice problem like this, the analysis of the choices offers the quickest solution.

The third attachment shows a plot of the data, along with the line of best fit.

(When the offered choices differ from each other by only a few percent, then calculation is needed for choosing the correct one.)

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Write a numberical expression for the word expressions

1. 30 more than 20

2. the product of 7 and 12

3. 100 decreased by 77

Answers

20 + 30 = 50
7 + 12 = 19
199 - 77 = 122
(I beleive)

1) 20+30= 50
2) 7x12 = 84
3) 100-77 = 23

Laurie rode her bike 17.5 miles in 2 hours. She uses this equation to represent the relationship between her time and distance.
2x = 17.5
Group of answer choices
The distance Laurie traveled per hour.
The time Laurie spent riding her bike.
The distance Laurie rode her bike.
Thanks!

Answers

Answer:

Step-by-step explanation:

x = the distance Laurie travled per hour.

2 = the time she spent riding her bike

17.5 = the distance she traveled.

Solving the equation for x represents

the distance she traveled per hour.

8.75 mph
2 hours of riding
17.5 miles in all

The Happy Ride Amusement Park offers the two admission plans described below. A visitor to the park plans to buy tickets for a number of rides. For what number of rides would the total cost of Plan X be equal to the total cost of Plan Y?

Plan X: $13.00 admission fee plus $2.00 for each ride ticket
Plan Y: $4.00 admission fee plus $3.50 for each ride ticket

Answers

Answer:

6 rides

Step-by-step explanation:

[tex]13 + 2x = 4 + 3.50x[/tex]

[tex]9 = 1.50x[/tex]

[tex]x = 6[/tex]

What is the answer to x-(x-4) ( I do know that you need to remove the parentheses)

Answers

Answer:

Step-by-step explanation:

During photosynthesis, what is the path or flow of energy among biotic and abiotic parts of an ecosystem?

Answer:

Step-by-step explanation:

We know that,

( - ) × ( - ) = ( + )

( + ) × ( + ) = ( + )

( - ) × ( + ) = ( - )

Accordingly, let us find it now.

x - ( x - 4 )

Solve the brackets.

x - x + 4

Combine like terms.

PLEASEEE HELPPPP MEEEEEE

Answers

Answer: 8 times 6 because if you count the 2's its 6 and multiply it by 8 and you get 40

Step-by-step explanation:

Your answer is 8 times. 6 hope this helped

Picture 1: is the function described by the points linear or nonlinear?
Picture 2: which table could be a partial set of values for a linear function?
Picture 3: is this function linear or nonlinear?
Picture 4: select linear or nonlinear to correctly classify each function.
Picture 5: a function is represented by values in the table. The function represented in the table is linear or is not linear.

Answers

Answer:

1) Linear

2) Top left

3) Nonlinear

4) Nonlinear

5) Linear

Step-by-step explanation:

There is a constant rate of change of 3. As the y changes by 3, the x changes by 1

The constant rate of change is 2

No constant rate of change

nonlinear The [tex]x^{2}[/tex] tells us that it will not be linear

linear

Can be written the in the slope intercept form

'y = -8x + 13

Timothy brought in brownies for his class on his birthday.

Each box has 15 brownies in it.

He handed out 1 4/5 boxes.

1/9 of the brownies had nuts.

How many brownies had nuts?

A 5

B 3

C 2

D 4

Answers

3, there is 27 brownies total.

The answer to the question is 3

Jada made 6 cups of blueberry jam and divided the jam equally among 4 containers. How much jam went in each container?

Answers

Answer:

1 and a half

Step-by-step explanation:

If you are dividing 6 into 4 then it's just 6÷4 which is one and a half

Answer:

jada made three and 1/3 cups of jam.

Step-by-step explanation:

hope this helps!

Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60

help asap if answer is correct and provided explanation i will give brainiest.

Answers

Answer: 0.40

Reason:

6 black out of 4+6+5 = 15 total

6/15 = 0.40 is the experimental probability of selecting black.

Side note: The term "empirical probability" is the same as "experimental probability".

The experimental probability of selecting a black marble will be 0.40. The correct option is C.

What is probability?

Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.

Probability = Number of favourable outcomes / Number of samples

Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.

Number of favourable outcomes = 6

Number of samples = 4+6+5 = 15

Probability = Number of favourable outcomes / Number of samples

Probability = 6 / 15

Probability = 0.40

Therefore, the probability will be 0.40.

To know more about probability follow

https://brainly.com/question/24756209

#SPJ2

(a) Write an equation and (b) solve.

A farmer bought a 60,000 sq. ft. rectangular
field for his livestock. If the field was 300 ft.
long, how wide was the field?

Answers

Answer: 200sq. ft

Step-by-step explanation: 60000 divided by 300 is 200

a rectangle's area = base x height

60000 = rectangle area

300 = height

base = 60000 divided by 300

The Leonard family uses up a 1/2 gallon jug of milk every 3 days. At what rate do they drink milk?
Simplify your answer and write it as a proper fraction, mixed number, or whole number.

Answers

Answer: 1/8 a gallon per day

Step-by-step explanation: 1/2 / 3 = 1/8

2,345m= How many mm

Please help me

Answers

Answer:

2345000

Step-by-step explanation:

just multiply the length value by 1000

You have to move backwards what will be 3 positions

2,345 = 2345,0

Expand the expression 3(n + 7)

Answers

Answer:

3n + 21

Explanation:

you just times 3 with the numbers in the brackets

3(n+7)

3n+3•7

3n+21

Explanation: Numerical factors in this term have been multiplied.

Enter your answer and show all the steps that you use to solve this problem in the space provided.

A circle with radius labeled 23 yards

Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.

Answers

Answer:

The area of the circle that has a radius of 23 yards will be 1,661.06 square yards.

What is the area of the circle?

It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.

Let r be the radius of the circle. Then the area of the circle will be

A = πr² square units

The radius of the circle is 23 yards. Then the area of the circle is calculated as,

A = π x (23)²

Simplify the equation, then the area of the circle is calculated as,

A = π x (23)²

A = 3.14 x 529

A = 1,661.06 square yards

The area of the circle that has a radius of 23 yards will be 1,661.1 square yards.

Hope this helps, if I'm wrong I sincerely apologize

An irregular polygon is shown below:

The area of the irregular polygon is ____ square units.

Answers

Answer:

20 square units

Step-by-step explanation:

you can separate this irregular polygon into 2 rectangles:

Rectangle 1 (bigger): 3 Units X 4 Units = 12 square units

Rectangle 2 (smaller): 2 Units X 4 Units = 8 square units

Add the 2 areas: 12+8 square units = 20 square units

Answer:

Step-by-step explanation:

To get the area of this irregular polygon, we have to turn the irrelgular polygon into 2 shapes. (Imagine a line drawn from the corner/wall that separates the unit 1 and 4 units down the bottom of the shape. I don't rlly know how to explain it sorry).

First we calculate the first rectangle which is simple, you just have to multiply! 3x4= 12.

Then for the second one, we have to subtract. Basically, 8 units minus 4 units is equal to 4 units meaning that our lenght is four units. Then 3 units minus 1 unit is equal to 2 units which is our width. (i'm deeply sorry if I couldn't explain it the best) Now we just do 4x2=8.

Now we just add 12 and 8 which gives us 20!

a poll was conducted of 540 voters asking for which candidates they planned to vote The results are given in the table what percent of the voters planned to vote for the democratic

Answers

Can you post a photo of the table?

Answer:

43.15% of the votes are democrats

Step-by-step explanation:

Please help. This is almost overdue :-(

Answers

I believe this is $24.25

Total paid = $296

Number of tickets = 16

Cost per tickets = 296/16 = $18.5

This cost excludes the $5.75 saved due to the group.

Original price = $18.5 + $5.75 = $24.25

Answer:

Step-by-step explanation:

I believe this is $24.25

Total paid = $296

Number of tickets = 16

Cost per tickets = 296/16 = $18.5

This cost excludes the $5.75 saved due to the group.

Original price = $18.5 + $5.75 = $24.25

The image of a trapezoid is shown.

An isosceles trapezoid with a short base of 3 meters and a height of 6.2 meters. The portion of the large base from the left vertex to the perpendicular is 4 meters. The portion of the large base from the right vertex to the perpendicular is 7 meters.

What is the area of the trapezoid?

20.2 m2
43.4 m2
33.4 m2
86.8 m2

Answers

Answer:

the answer is b

Step-by-step explanation:

because it is b

Which table below represents a function?

Answers

Answer:

Step-by-step explanation:

Because im right! yesssss

it is B because the inputs have to be different numbers to be a function

Can you solve this for me? Thank you! :>

Answers

39.12$
Because
9.78 x 4 = 39.12$
Good luck

Can you solve this for me? Thank you! :>

Write each expression as the product of two factors.

Answers

Answer Which strategy would help you best in preparing for vocabulary you have never seen before? learning the prefixes of words writing a word list while you read a t...

The answer would be 4(6x6)8 and 8(5x4)9

Find the ratio of y/x to determine if the table represents a proportional relationship:

Answers

Answer:

From the table, find the ratio between each value of y and its corresponding value of x. y/x = 1/5 = 1/5 y/x = 8/40 = 1/5 y/x = 13/65 = 1/5 So, the ratio between the values of y and and their corresponding values of x is constant. Hence, the relationship represented by the table given above is proportional.

Step-by-step explanation:

♡ To start off, the numbers listed are factors of two and answers of the pairs, 2x4=8 is an example and if you divide the numbers you will notice that you have to multiply the numbers with 2 to get the x value and if you keep dividing you’ll eventually end up with 2 for each one. So yes, the table does represent a proportional relationship. ♡

Which statement best defines a system of equations?

Answers

the first one “ A set of things working together as parts of a mechanism or an interconnecting network”

I think it’s the first one but I’m not sure. Sorry if it’s wrong good luck

PLEASE HELP ME

This figure is made from a square and part of a circle. What is the perimeter of the figure to the nearest whole number unit?

A. 48
B. 54
C. 61
D. 64

Answers

Hsbshdhhdjdbdbdbdbdhdhfvrbthe thing is I don’t know

The answer is 48. Look at picture for work shown

I need help asap.....

Answers

(x-7)(x-6)

this is because -6 and -7 make -13 and multiply together to get +42

the answer to this question is ( x + 6)( x + 7)

Jonathan is driving to his grandma’s house. Jonathan’s car is going 75 mph and he has to go 340 miles still. Brighton, Jonathan’s cousin, is leaving his house and is traveling 70 mph and has to go 320 miles. Who gets to grandma’s house first? How long did it take him?

Answers

Answer: Jonathan will get to his grandma's house first because his car is going 5 mph faster than Brighton's. It will take Jonathan 4 hours and 48 minutes to get to his grandma's house.

Answer: Johnathan will get it in 4.53 hours. Jonathon's cousin will take 4.57 hours.

Step-by-step explanation:

340/75=4.53

320/70=4.57

A salad dressing recipe uses 12 parts oil, 3 parts vinegar, and 2 parts honey. Which of the following sets of ingredients are in a proportional relationship with the recipe? Select all that apply.
9 Tbsp oil, 2 Tbsp vinegar, 1.5 Tbsp honey
6 Tbsp oil, 1.5 Tbsp vinegar, 1 Tbsp honey
15 Tbsp oil, 4 Tbsp vinegar, 3 Tbsp honey
18 Tbsp oil, 4.5 Tbsp vinegar, 3 Tbsp honey
24 Tbsp oil, 6 Tbsp vinegar, 4 Tbsp honey
Please give an explanation on how you got your answer.

Answers

Answer:

24 tbsp oil, 6 vinegar, 4 honey

Step-by-step explanation:

they are all equally multiplied so therefore are equivalent to the original

24 is a factor of 12

6 is a factor of 3

4 is a factor of 2

hope this helped!!

That is a lot of food lol I think u have to add all of them

Can you solve this for me? Thank you! :>

Answers

Answer:

h < 40

Step-by-step explanation:

Less than is <

Greater than is >

Less than or equal to is ≤

Greater than or equal to is ≥

h < 40

Find the number that makes the ratio equivalent to 12:4.

60:__

Answers

The answer for this question is 15

Answer: 12x5 is 60 and 4x5 is 20 so it is 12:4 to 60:20

Step-by-step explanation: Just use multiplication

Other Questions

Write an linear equation in slope-intercept format of each line.Write a linear equation for each table relating x and y. For the change in tires in problem #1, what is your true speed if you do not adjust the speedometerfor the new tire size and speedometer reads 55 mph? Some animals have only blank cell Can you insert a formula in a table? TJilly moved down the tables, tucking a stray hair behind her ear with a gloved and already dirty hand. She'd repotted the last of the rosemary plants and mixed a new batch of potting soil already. Mrs. T. now had enough potting soil to last her through September. Jilly looked at a couple of maiden-hair ferns that were beginning to yellow in their small pots. She loved their lacey fronds and had grown concerned over the last few days that they needed repotting or a boost of fertilizer. She had also worried that she would continue to find chores that needed doing, plants that needed help, right up until the minute she left today. She hated unfinished things. She hated details not being tended to.The sun had been above the trees and blasting the greenhouse for a good hour now. Jilly listened for the familiar whirr of the automatic vents opening. When the greenhouse reached a certain temperature, the vents would open automatically. The vents would have a cooling effect for an hour or so, and then no amount of breeze would put a dent in the heat. Mrs. T. often claimed Jilly must be part reptile as she was able to work longer in the greenhouse than anyone else. The heat just didn't bother her. In fact, Jilly often looked forward to the warmth of the greenhouse and feeling the heat seep into her bones. It felt good to her, but she understood others who found it hard to breathe in 100 degree temperatures.Jilly heard the greenhouse door bang, and looked up from her ferns to see Mrs. T. walking down the aisle with a tray of young plants. Mums, Jilly supposed, the flowers everyone wants for fall. She had helped Mrs. T. take cuttings and plant the small stems in new pots. They were doing nicely from the look of things."We will keep these in here for now," said Mrs. T. "They are getting too much rain outside."It had been a rainy couple of days. Jilly knew, as well as anyone, that overwatering could kill potted plants quickly."Do you remember when I overwatered those mint plants?" Jilly asked Mrs. T."I used to think no one could kill a mint plant," Mrs. T. said, laughing."Well I am full of surprises, apparently," Jilly replied. Jilly remembered the sad green plants that just kept looking more and more wilted no matter how much water she gave them. It was a beginner's mistake, and Jilly had been so embarrassed for making it."That you are," replied Mrs. T. "But I know you learned a lesson you won't ever forget.""Of course. Herbs like their roots damp, not flooded," Jilly answered."Well that is not the lesson I was thinking of," Mrs. T. said.Jilly wondered for a minute what the lesson could be. She straightened the rows of geraniums in front of her, picking up one or two to check for aphids under the leaves. It had been a summer full of lessons, some especially hard for a girl who thought she knew a lot about plants. She breathed deeply the warm, humid air. She hated the cooped up feeling of air conditioned air, the feeling of being cut off from the sun. She knew school and the library would offer only these uncomfortable feelings and little time to spend in the sun or with plants. She had come to understand this over the summer-her need to be around growing things was huge."I'm not sure, Mrs. T." she said, "I've learned so much this summer. I couldn't possibly say what you are thinking.""You did learn many lessons, Jilly. You knew so much when you started. You've gone farther than any other assistants I've had. I will miss you.""And I will miss you," Jilly replied. "Thank you for the opportunity and the job." Jilly watched Mrs. T. put the tray of mums down on the center row of tables. Wearing her familiar brown apron, Mrs. T. looked just as she had on Jilly's first day."My pleasure, of course, dear," Mrs. T. replied. "My hope for you, as for all my assistants over the years, is that you will learn as much about yourself as you do about growing plants."Recalling her thoughts all morning, about what she enjoyed about her summer job, Jilly realized she knew much more than just how to not drown the mint.!!!!Which lines from the text best describes the conflict in the story? (5 points)!!!!!!!!1. She hated the cooped up feeling of air conditioned air, the feeling of being cut off from the sun. She knew school and the library would offer only these uncomfortable feelings and little time to spend in the sun or around plants.2. The sun had been above the trees and blasting the greenhouse for a good hour now.3. Jilly heard the greenhouse door bang, and looked up from her ferns to see Mrs. T. walking down the aisle with a tray of young plants.4. Mrs. T. often claimed Jilly must be part reptile as she was able to work longer in the greenhouse than anyone else. Does 5 7 11 make triangles? Flock YStep 2: Simulate an Environment withEqual Amounts of Insects, Seeds, and FruitWhich flock will be able to eat the most? Theleast? Why? Please help with this All competitive markets involve which of the following?A. quantityB. supplyC. priceD. demandE. government regulators What is personal narrative in your own words? what is the fakeing answer Fill in the blank with the correct form of the verb ser.Nosotros _________ de Per.A. soisB. somosC. sonD. soy Figure 4 shows balls 1 and 2 before and after a collision.Ball 1 initially travels with a velocity of u m/s. Ball 2 is stationary and has a mass of 0.2 kg.Ball 1 collides with ball 2 and this collision lasts for 0.1 s. Afterwards, both balls move inthe direction of ball 1's initial velocity. Each ball has a different final velocity. During the collision, a force of -6N is exerted on ball 1 by ball 2 Calculate the velocity of ball 2 after the collision Which of the following best summarizes the author's portrayal of white Southern childhood during her lifetime?A. Southern children inherently felt the tension and guilt of growing up in the segregated South.B. Southern children felt proud of their region's strongly rooted history and culture.C. Southern children were quick to adapt to changing social norms, despite their parents' resistance.D. Southern children did not notice the racial inequality and political tension that plagued their communities. On what grounds did the Supreme Court assert the power of judicial review in the case of Marbury v Madison? . Calculating The half-life of iron-59 is 44.5 days.After 133.5 days, 2.76 g of iron-59 remains.What was the mass of the original sample?-SOMONE JUST PLEASE HELPP ME IM LITERALLY STUCK!! How doe Sergei cultural background contribute to hi character development? Cite text evidence to upport your repone Why did the United States experience an economic downturn after World War I? How can different types of light can change materials in different ways when light enters a pair of glasses, it when it hits the glasses