Mathematics Middle School

=)))))))))))))))))))))))))

Answers

Answer 1

Answer:

Step-by-step explanation:

-10x is less than or equal to 40

x is greater than or equal to -4

flip the signs when you divide by a negative #

Related Questions

See the picture to solve the question 1Question=10 points

Answers

Answer:

1.5x+2.75y+33

Step-by-step explanation:

Call x: the hour of dogs keeping

y: the hour of wolves keeping

The total charge for dogs keeping: 19+ 1.5x

The total charge for wolves keeping: 14+2.75y

Total cost (19+ 1.5x)+(14+2.75y)= 1.5x+2.75y+33

the answer is 1.5x+2.75y+33

Which sign makes the statement true?
5.7 x $10^{2}$ 5,700,000,000,000

Please help me quickly!!

Answers

Answer:

Step-by-step explanation:

the exponent will tell you how many places u need to move the decimal. 5.7 × 10 to the 2nd power = 570. u moved the decimal 2 places to the right.

The sign that makes the statement true is "=".

If we interpret the statement correctly "5.7 x 5,700,000,000,000" means to multiply 5.7 with 5,700,000,000,000, which gives us the result of 32,490,000,000,000.

Therefore, we can write the statement as: 5.7 x 5,700,000,000,000 = 32,490,000,000,000.

5 1/4, 90 cm ,6 cm find the height of this prism

Answers

Answer: I think it is 13 cm

Step-by-step explanation:

I think the answer is 13cm

Please Help ASAP! Rewrite x^4y^2 − 3x^3y^3 using a common factor.
A. 3xy(x^3y − x^2y)
B. 3xy^2(x^2 − x^2y)
C. x^2y(xy − 3xy^2)
D. x^2y^2(x^2 − 3xy)
I think it's B. But I might be wrong.

Answers

Answer:

Step-by-step explanation:

you are completely right please follow your heart <3

It’s actually D.

You have to look at both x and y and it’s power. You have to look for the lowest power for x and y. For y as you can see that the lowest power is 2. As for x it can be either power of 3 or even 2. When you removed x^2 and y^2 from the equation. The inside parenthesis will be x^2-3xy. Just remember when you divide both x^2 and y^2, you subtract the power.

When you get the answer, please check the answer if it’s the same as the original. Meaning distribution both x^2 and y^2 to inside parenthesis. And for the power, you add them. This way you can double check and see if it’s the same.

Please Help ASAP! Rewrite x^4y^2 3x^3y^3 using a common factor.A. 3xy(x^3y x^2y)B. 3xy^2(x^2 x^2y)C.

This is the question that I am struggling on right now. If you could help me as soon as possible, that would be great. Thank You!

Answers

Answer:

1) cos function (it looks just like one)

2) yint is (0,1) or y=1

3) Smallest xint is (-2π,0)

4) greatest y value is y=1 and thats when x=0

5) Not sure what the last one is asking

The answer is a/7 times 3.14359

58=2u
Solve for u.
I really need help solving this.

Answers

Answer: I think its 29?

Step-by-step explanation:

58 = 2u

divide both sides by 2

29 = 1u

help me pls an thx u

Answers

Answer: 4, 1, 3, 2

Step-by-step explanation:

Numbers that fall in the times:

18 to 22 - 21, 18, 19, 22

23 to 27 - 26,

28 to 32 - 29, 29, 29

33 to 37 - 37, 33

Answer: 4 , 1 , 3, 2

Carl’s monthly bank statement showed the following deposits and withdrawals: -5.78, 23.67, -16.09, -18.76, 83.10. If Carl's balance in the account was $41.56 at the beginning of the month, what was the account balance at the end of the month?

Answers

$107.7

Explanation: take his balance at the beginning of the month and subtract the amount shown if it has a - in front and add the amount of it doesn’t have anything in front or if it has a + and see what it ends up with at the end

$107.70
If you subtract all the negatives you get 93cents then add the positive you get 107.70

Calculate the area for each shape.

Answers

Trapezoid- 45 square units
Triangle- 27 square units
Parallelogram (to the right figure):
30 square units

MARK ME BRAINLIESTT PLEASE

The points on the graphs represent relations. Classify these relations according to whether or not they are functions. (3)

Answers

Answer:

here

Step-by-step explanation:

Answer:1 and 2 is a function. But the third one isn't. explanation: When there is more than one point on a vertical line that is not a function.

6.7 more than the quantity x divided by 2.1 is greater than or equal to b.

How is this word sentence written as an algebraic inequality?

Answers

Answer:

6.7 + x/2.7 ≥ b

Step-by-step explanation:

(6.7) (more) (than the quantity x divided by 2.1) (is greater than or equal to) (b)

6.7 + x / 2.1 ≥ b

6.7 + x/2.7 ≥ b

Answer:what is the anwser

Step-by-step explanation:

helppppppppppppppppppppppppppp

Answers

Answer:the hat was 14$

Step-by-step explanation: count the money then count the money on the other side see how much money is taken away and there you go that is how much it was

X = $14

Paul starts out with $2. All that you have to do is subtract $6 the amount he has after buying the hat, from $20.

$20 - $6 = $14

$20 - X =$6 (in the end you would find out x = 14)

What is the surface area of the cylinder. Use 3.14 as pi.

Answers

Answer: 376.8 cm^2

Step-by-step explanation:

The formula for the surface area of a cylinder is A = 2prh +2pr^2

When:

A = surface areap = value of pi (3.14 in this case)r = radius (= 1/2 diameter)h = height

When we substitute our values, we get the equation

A = 2(3.14)(4)(11) + 2(3.14)(4^2)

Now, we just multiply, square, and add our numbers to find A

A = 2(3.14)(4)(11) + 2(3.14)(4^2)

A = 2(3.14)(44) + 2(3.14)(16)

A = (6.28)(44) + (6.28)(16)

A = 276.32 + 100.48

A = 376.80

Because the hundredths place is a 0, we don't need to round.

A = 376.8

The unit is in centimeters. Area, and surface area by extent, are written in cm^2 (centimeters squared)

A = 376. 8 cm^2

Final answer: A = 376.8 cm^2

Answer

376.8 cm^2 might be wrong

x-12-23+7.5=1 ; what is the value of x?

Answers

Answer:

X=28.5

Step-by-step explanation:

Hope this helps!

Answer:

x=28.5

Step-by-step explanation:

x=1+12+23-7,5

x=13+23-7,5

x=36-7,5

x=28,5

:))

Another time, I need help with this. and if you can...answer my last question too..?

Answers

Answer:

Answers A, C, and E

Step-by-step explanation:

Answer:

the anser is a c and e i anserwed your last question

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.

Will give Brainliest if ur right!!!

Answers

Answer:

2nd selection

Step-by-step explanation:

good luck

Answer:

It's the B or the second option.

Step-by-step explanation:

I got this right on my Exam on FLVS!

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

THIS IS VERY EASY PLEASE HLP 50-200 POINTS WILL DISTRIBUTE AND AT LEAST 2 BRAINLIES DEPENDS ON HOW MANY OF U ANSWER PLEASEBE ASAP

Answers

Answer:

Year 1: 3060 euros

Year 2: 3121.2 euros

Year 3: About 3183.62

Interest: about 183.64

Step-by-step explanation:

62.424

121.2

183.64

Year 1: 3060 euro
Year 2: 3120 euro
Year 3: 3180 euro

Explanation:
Multiply 3000 by .02 (two percent as a decimal.) You get the answer 60, so Tony gets extra 60 euro each year.

can you help it would be very appreciated

Answers

the answer A has the correct sign

Answer:

Step-by-step explanation:

Please help with this! Thank you

Answers

Answer: 6 inches

Step-by-step explanation:

Because there are a total of 6 sticks that are 7/8 of an inch, all you need to do is multiply 6 by 7/8ths and then add the one stick that is 6/8ths of an inch.

6 x 7/8

6/1 x 7/8

42/8

5.25 in

6/8 + 5.25

0.75 + 5.25

6 in

Your total is 6in bc I said so

This question is reall easy, just plsss help me?! Will give brainliest!!!

Answers

Answer:

Where the question?

Step-by-step explanation:

Answer:

What? Not given question!

Step-by-step explanation:

JUST MARK ME AS BARINLIEST!

pls answer 20 points I will mark brainliest

Answers

Answer:

678.24

Step-by-step explanation:

First, we have to find the area of 1 cylinder(pi x r^2 x h), which i got as 226.08 then we multiply by 3 because there are 3 cylinders. 226.08 x 3 = 678.24

Answer: Hope this helps you!

678.24

Step-by-step explanation:

First, I started off with the equation of the area of a cylinder

Area = π * radius^2 * height

Now I will go on and substitute

Area = 3.14 * 3^2 * 8

And now I will start solving

Area = 3.14 * 3^2 * 8

(3^2 = 3*3 = 9)

Area = 3.14 * 9 * 8

(9*8 = 72)

Area = 3.14 * 72

Area = 226.08

The area of 1 cylinder is 226.08, however we need to find the area of the whole composite figure which is made up of 3 cylinders.

226.08 * 3 = 678.24

The answer is 678.24(Make me brainliest!)

thanks for the help guys lol

Answers

Answer:

1. 5,750,000,000

2. 0.00068

3. 520,000,000

Step-by-step explanation:

After the decimal point, the amount of numbers have to be the same amount as the exponents. So it wouldnt be 575000000000, but instead it would be 5750000000. Because 5.75, the numbers after the decimal point count, so instead an easier way would be to subtract the number of exponents ( 5.75 x `0^9) with the amount of numbers after the decimal point. So 9 - 2 = 7. So there should be 7 zeros after the number. If it doesnt make sense, dont worry, youll get the hang of it.

Answer:

3.)5750000000

4.)0.00068

5.)520000000

Step-by-step explanation:

The goal is to make them equal both sides. So there's 7 lines in total, you can move only one line from either side to the other side, to make this statement equal. The line can be move at any angle and direction. How do you do it?

Answers

I don’t think that is possible

The area of a rectangle is 35 square inches and one side is 10 inches long. Find the perimeter of the rectangle

Answers

Answer:

2/7

Step-by-step explanation:

all u have to do is 10 Divided by 35

Answer:

P = 27 in

Step-by-step explanation:

P=2l+2A

l=2·10+2·35

10=27in

♡Solve the following expression when...
F = 3
7 + 4 + f^2 - 5f + 2
Please help asap!! Tysm!!♡

Answers

Answer: hope this helps ♡

Step-by-step explanation:

f = 3

7 + 4 + f^2 - 5f + 2

= 7 + 4 + 3² - 5*3 + 2

= 7 + 4 + 9 - 15 + 2

= 20 - 15 + 2

= 5 + 2

= 7

7
Because it is, have a goid day

The diameter of Mars at its equator is approximately 6790 kilometers. Write this number in scientific notation.

Answers

Answer:

6.79 x 10 to the power of 3

Step-by-step explanation:

6790 divided by 1000 is 6.79

6.97x10^3
Is the answer I believe

(Will give Brainliest, these are angle relationships) Please help, and show work, what relationship is it and set up an equation for it and then solve. Ty

Answers

Answer:

5x+15 = 45

-15 -15

5x = 30

30/5 = 6

x=6

they are complementary angles!

Answer:

These are complementary angles, meaning together they equal 90 degrees!

x=6

Step-by-step explanation:

Step 1: Find what 5x+15 should equal. Since together the angles equal 90, you must subtract 45 from 90.

90-45=45

Step 2: Set 5x+15 equal to 45

5x+15=45

Step 3: Solve

5x+15=45

-15 -15

——————

5x/5=30/5

x=6

Hope this helps! ❤️❤️❤️

Whats the answer to b and c

Answers

The opposite of an angle around a point is always the same, so we know the unlabelled angle is also worth 43. Then, do 43 + 43 which is 86. Next, note that angles around a point all add up to 360. What we need to do is find the total of c and b, which is 360 - 86. Therefore, 274 is the total of b and c. Finally, half 274 to find both individual values. That means b = 137 and c = 137

Answer: c=137

b=137

Step-by-step explanation: Angles in a straight line add up to 180 degrees

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