Mathematics Middle School

Simplify:
–5j2+ – 8+5+ – 10j+3j2

Answers

Answer 1

Answer:

35!!

Step-by-step explanation:

Hope it helps!!

Answer 2

Answer:

I'm pretty positive the answer is 35

Step-by-step explanation:

I hope this helps Good luck

Related Questions

What type of function is this?

Answers

Quadratic function because it’s a u shape

Quadratic function because of the U shape that took form on the graph

Pleaseeee I need help fast
59 points no kidding
Just answer questions 5 and 6

Answers

5. Type: Exponential
Reason: it’s not moving at a constant rate/ not a straight line through the orgin

6. Type: exponential
Reason: exponential equations are written with x as an exponent while linear equations are written with an x after a number (variable)

99.9% sure it’s right…

Question #5:
Type: Non-linear
Reason: Not a line, or in a parabolic shape
Name the function: Quadratic

Question #6:
Type: Non-linear
Reason: X is the exponent
Name the function: Exponential

If James have 8,000 buttons, and he give 4,000 to 3 friends, how many does he have left?

Answers

he would’ve had 4,000

After giving buttons to his friends, James have left with 4000 buttons.

Given that James has 8000 buttons he distributed 4000 buttons to his friends, we need to find how much he have now,

If James originally has 8,000 buttons and he gives 4,000 buttons to three friends, we can calculate the number of buttons he has left by subtracting the buttons given away from the original number.

Buttons James has left = Original number of buttons - Buttons given away

Buttons James has left = 8,000 - 4,000

Buttons James has left = 4,000

Based on the calculations, it seems that James would have 4,000 buttons left.

Learn more about Subtraction click;

https://brainly.com/question/13619104

#SPJ7

3(y-2x) = 9
x - 4 = 0

PLSSS HELPPP

Answers

Answer:

(x, y) = (4, 11).

Step-by-step explanation:

We have two equations:

3(y-2x) = 9

x - 4 = 0

From equation 2, we have x = 4. We can substitute this value into equation 1 and solve for y:

3(y-2x) = 9

3(y-2(4)) = 9 (substitute x = 4)

3(y-8) = 9

3y - 24 = 9

3y = 33

y = 11

Therefore, the solution to the system of equations is (x, y) = (4, 11).

Answer

x=4

Step-by-step explanation:

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

what is the equation y=mx-4

Answers

This is the slope-intercept form, with -4 the y-intercept and m the slope

This is slope intercept form. M represents your slope, also known as rate of change, y2-y1 / x2- x1, and triangle (delta) y / triangle (delta) x.

B is your y-int. It's the initial amount you start off with.

Hope this helps!

Compare the perimeter and area of the original figure to the enlarged figure using proportions.

A small rectangle has a length of 2, and a width of 1. A large rectangle has a variable length of b, and width of 2. StartFraction enlarged side (2) over Original side (1) = StartFraction Enlarged perimeter (4 + 2 b) over Original perimeter (6) EndFraction. (StartFraction enlarged side (2) over Original side (1) EndFraction) squared = StartFraction Enlarged area (2 b) over Original area (2) EndFraction
Which statements describe true relationships? Check all that apply.
The enlarged area is 4 times the original area, which is the square of the scale factor.
The scale factor is One-half.
The enlarged perimeter is 2 times the original perimeter, which is the scale factor.
The perimeter is proportional to the scale factor and the area is proportional to the square of the scale factor.
The enlarged area and perimeter are equal.
plz help me I will mark brainliest and give thanks :D but only if you can it's fine if you don't know the answer.

Answers

Answer:

A,C,D

Step-by-step explanation:

I just got it right on edge2021

plz mark brainliest

The histogram shows the number of prizes won by different numbers of students at a sports competition. Which of the following statements is correct regarding the number of students and the number of prizes won? (5 points)

Six students won 4, 5, 6, or 7 prizes.

A total of 9 students won all the prizes.

Six prizes were won by 4, 5, 6, or 7 students.

A total of 9 prizes were won by all the students.

Answers

Answer: A. six students won 4,5,6, or 7 prizes

Step-by-step explanation:

At the bottom of the histogram you see the number of prizes, the 4-7 prizes bar goes up to 6 students.

A. six students won 4,5,6, or 7 prizes

At the bottom of the histogram you see the number of prizes, the 4-7 prizes bar goes up to 6 students.

Rewarding brainly and if you dont look for a unanswered question i posted or lmk if you want me to post one (NOT THIS ONE)

Answers

Answer:

Step-by-step explanation:

Pls mark me brainliest.

Answer:

Point L

Step-by-step explanation:

Point L is located at x, the horizontal coordinate, -3, 3 to the left, and is 0 units up/down, on the y coordinate.

x coordinate ALWAYS comes first, unless you're doing slope

In a race,
29 out of the
50
swimmers finished in less than
50 minutes. What percent of
swimmers finished the race in less than
50 minutes? Write an equivalent fraction to find the percent.

Answers

58% of swimmers swam the race in under 50 minutes

Answer:

58% - 29/50(equivalent fraction)

Step-by-step explanation:

29/50 x 2 = 58/100 convert to decimal, 0.58, convert to percent, take decimal symbol and put it to digits to the right, 58%

the reason I doubled the fraction was to make it 100 so you can convert into a decimal a lot easier.

how I got 29/50, 29 out of 50 is the same thing is 29/50.

-6+$\frac{x}{4}\\$=-5

Answers

Add 6 to -5 which is 1, so you get

x/4 = 1

Multiply 4 and 1

The answer would be: x = 4

The answer is going to be x=4 have a great day ! Goodluck with your assignment :)

for a giveaway, a local radio station is putting together goodies bags. the bags will include tickets and posters. each bag will receive an equal share of 54 and 36 posters.
a. what is the greatest number of goodie bags that can be created? explain your reasoning.
b. how many of each type of giveaway will be in each bag? explain your reasoning.

Answers

Answer:

https://brainly.com/question/11362948

Step-by-step explanation:

they explain nicely

18, Each bag will have 2 posters and 3 tickets. Sorry if I’m wrong, I did the calculations inside my head.

Mrs. Wickowitz purchased at leat 4 dozen muffins to give to her students. write an inequality to represent the amount of dozen of muffins, m, that Mrs. Wickowits purchased.
A) m < 8
B) m > 4
C) m > 3
D) m < 12

Answers

Since Mrs. Wickowitz purchased at least 4 dozen muffins, we can represent the amount of dozen of muffins she purchased as:

m >= 4

This inequality states that the value of m (the number of dozen muffins) must be greater than or equal to 4.

Therefore, the correct answer is B) m > 4.

Given the domain {-2, 1, 5}, what is the range for the relation 4x + y = 3?

{11, -1, -17}

{-5, 7, 23}

{-11, 1, 17}

{-1, 4, 8}

Answers

Answer:

Its the first one

Step-by-step explanation:

Answer:

FOR PLATO IS NUMBER 2

Step-by-step explanation:

(11,-1,-17)

The College of Veterinary Medicine at Texas A&M University conducted a study of the rattlesnake vaccine for dogs. The researchers determined that:
•12 out of 15 cases of dogs that received the vaccine prior to the rattlesnake bite survived, and
•8 out of 18 cases of dogs who did not receive the vaccine prior to the rattlesnake bite survived.
If there were 900 dogs in the study that received the vaccine and were then bitten by a rattlesnake, how many of this group did NOT survive the rattlesnake bite?

Answers

Answer:120

Step-by-step explanation:

The College of Veterinary Medicine at Texas A&M University conducted a study of the rattlesnake vaccine

Paddling with the current, a group of kayakers traveled 9 miles in 2 hours. Paddling back, they traveled 4 miles in the same amount of time. What was the speed of the current and the speed of the kayakers in still water?
Please do not answer 3.25 and 1.25 they are incorrect.

Answers

Answer: the speed of the current is 5 miles an hour

Step-by-step explanation:

9-4=5

Answer: 5 miles an hour

Use repeated addition to find the solution to each multiplication problem. Change any improper fractions to mixed numbers. 4x1/3

Answers

Answer:

$1\frac{1}{3}$

Step-by-step explanation:

Given the following question:

$4\times\frac{1}{3}$

To find the answer simply multiply the numerators and the denominators by each other.

$4\times\frac{1}{3}$
$4=\frac{4}{1}$
$\frac{4}{1} \times\frac{1}{3}$
$4\times1=4$
$1\times3=3$
$=\frac{4}{3}$
$\frac{4}{3} =4\div3=1\frac{1}{3}$
$1\frac{1}{3}$

Hope this helps.

The figure below shows three quadrilaterals on a coordinate grid:

A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. An image of a rectangle labeled P is shown on ordered pair negative 1, negative 1 and negative 3, negative 1 and negative 3, negative 2 and negative 1, negative 2. Another image of a rectangle labeled Q is shown on ordered pair negative 2, negative 2 and negative 6, negative 2 and negative 6, negative 4 and negative 2, negative 4. Another image of a rectangle labeled R is shown on ordered pair 1, 1 and 1, 2, and 3 , 2 and 3, 1.

Which of the following statements is true about the three quadrilaterals?

Q and R are similar and congruent.
Q and P are similar and congruent.
P and R are similar but not congruent.
P and Q are similar but not congruent.

Answers

Answer: con

Step-by-step explanation:

help i do need all of them sadly i only have 18 points plssssssssss help first person get brainlyes sorry for the spelling

Answers

Answer:

1. 3.1415 2. 3.141 3. 3.14 4. 3.14 5. 3.14

Step-by-step explanation:

Answer:

1. 40 : 125.66

2. 20 : 62.82

3. 12 : 37.68

4. 4 : 12.56

5. 2 : 6.28

Step-by-step explanation:

I hope this helps :)

Can I have Brainilest plzzz ;-;

Find the mean, median, and mode of the diamond weights.
Please help!!

Answers

Answer:

Mean: 1

Median: I'm not good at even number medians

Mode: 0.5

median - 0.65
mode - 0.5
mean - 1

an inequality is a comparison of two quantities that are the same is that true or fasle

Answers

The answer is FALSE because an inequality that can sometimes be equal or can where one number is greater than or less than a number.

EXAMPLE:
a = a
x > a
a < x

Answer:

The correct answer is true.

Step-by-step explanation:

Inequalities use operators like this

In this case if you were comparing 2 quantities that were the same you would simply be using the "=" operator. Example:

5 = 5

Hope this helps.

Look at the circle below.
∠ABC is 1/3 of a full turn.
How many degrees does ∠ABC measure?
Choose 1 answer:
A. 45 degrees
B. 120 degrees
C. 180 degrees

Answers

The answer is B.

it would be 119.99 but obviously round I bc there's too much 9.

Abc=full angle or 360
1/3 Divide by 360 =120
B

simplify the expression where possible. (6^3)^-3

Answers

Answer:

$( {6}^{3} ) {}^{ - 3} \\ = \frac{1}{( {6}^{3}) {}^{3} } \\ \\ = \frac{1}{ {6}^{9} } \\ \\ = {6}^{ - 9} $

Answer:

6^-9

Step-by-step explanation:

the answer is proved above

simplify the expression where possible. (6^3)^-3

Type a digit that makes this statement true.
153,80(number here) is divisible by 5.

Answers

Answer:

5Hope it helps!

Step-by-step explanation:

153805 is divisible by 5

The answer would be 5!
I hope this help!

Twenty-five students reported how many email accounts they have. The dot plot below shows the data collected:

A dot plot is shown with the title Email Accounts of Students. The values on the horizontal line are 1, 2, 3, 4, 5, and 6. The label along horizontal line is Number of Email Accounts. Put 8 dots vertically along the value 1, 6 dots vertically along the value 2, 5 dots vertically along the value 3, 3 dots vertically along the value 4, 2 dots vertically along the value 5, and 1 dot vertically along the value 6.

What do the dots above the number 3 represent?

Answers

Answer:

The dots above the number 3 represent that 5 students have 3 email accounts

Step-by-step explanation:

each dot represents 1 out of the 25 students

The 3 on the horizontal line is Number of Email Accounts

Visual representation:

Twenty-five students reported how many email accounts they have. The dot plot below shows the data collected:A

Answer:

There are exactly 4 students with 2 email addresses, if this isnt obvious i dont know what is

Step-by-step explanation:

there are 4 dots above 2 cmon people

What is $400 at 3% for 5 years?

A. Find interest earned
B. Find the balance of the account

Answers

The interest earned is $60 and the balance of the account is $460. The interest and the balance of the account will be both calculated with their given formulas.

An expense or payment for using borrowed money is interest; it is occasionally stated as a percentage of the principal borrowed. It could also be applied to the returns on investments or savings. Interest is the cost that a borrower typically reimburses a lender for the use of their funds.

A. We must use the formula-

Interest = Principal x Rate x Time, to calculate the interest earned.

Here, Interest = $400 divided by 0.03 and multiplied by 5.

Earned interest is $60.

B. We must utilize the formula-

Balance = Principal + Interest, to determine the account's balance.

Balance = $400 + computed interest in this instance.

Balance: $400 + $60.

The account's balance is $460.

To know more about interest:

https://brainly.com/question/29451175

Estimate: 4.1 * 7.8 *2.3

Answers

Answer:

yea yeah

Step-by-step explanation:

singing challenge

999+k=1,721 what is the answer

Answers

Answer: The answer is 722.

Step-by-step explanation:

1,721 - 999 = 722.

So, 999 + 722 = 1,721.

Answer: 722

Step-by-step explanation:

All you do is subtract 999, from 1,721. Super easy :)

Which answer choice best represents 50/15

?

Answers

Answer:

3 1/3

Step-by-step explanation:

See attachment below

Answer:

Option (A) 3 1/3

Step-by-step explanation:

Let’s solve the improper fraction into a mixed fraction.

The simplified fraction will get a remainder but we I’ll not solve the remainder.

50/15

Quotient = 3

Remainder = 5

Fraction = 3 5/15

= 3 1/3

Hope my answer helps you ✌️

Mark BRAINLIEST

If you help you will get a Sunday

Answers

It is e that’s the answer I think

The only logically answer would be E.

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Simplify: –5j2+ – 8+5+ – 10j+3j2

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Simplify:
–5j2+ – 8+5+ – 10j+3j2