Mathematics Middle School

The two dot plots below show the heights of some sixth graders and some seventh graders:

Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there is 1 dot for the first mark, there is 1 dot above the second mark, there is 1 dot above the third mark, there is 1 dot above the fourth mark and there are two dots above the sixth mark.

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 1.7. Approximately how many times the variability in the heights of the sixth graders is the variability in the heights of the seventh graders? (Round all values to the tenths place.) PLS HELP :)

Answers

Answer 1

Answer:

21 can you do sim for me

Step-by-step explanation:

I tired

Related Questions

I has happiness, now is depressed now happiness agen. please answer, sorry. I'm weird, Thank you!

Answers

Answer:

3x5+4x2-4=19

Step-by-step explanation:

dont be sad ok :D

Answer:

the answer for the thing there is X

Step-by-step explanation:

because is you multiply 3 by 5 you get 15 and then you add 15 with 4 and get 19. after you get 19 you multiply that by 2 and get 23 and then you subtract that by 4 and get 19 as your answer.

Hope this helped

The polygons are similar. Find the value of y

Answers

Answer:

4.5

Step-by-step explanation:

8/6= 6/y

Cross multiply:

8(y) = 6(6)

8y = 36

Divide both sides by 8:

8y/8 = 36/8

y = 4.5

Zivia is given the ordered pair (4, 16) from a table. She decides that the quantities in the table form a proportional relationship with a constant of proportionality of 4. Explain whether Zivia has enough information to draw her conclusion.

Answers

Answer:

5 days ago — Zivia is given the ordered pair (4, 16) from a table. She decides that the quantities in the table form a proportional relationship with a constant of proportionality of 4. Explain whether Zivia has enough information to draw her conclusion. Add answer+5 pts. Log in to add comment. wincentlin8 is waiting for ...

Step-by-step explanation:

Answer:

Step-by-step explanation:

A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round your answer to the nearest tenth of a cubic inch. Use 3.14 to approximate pi.

Answers

Answer:

its actually 2713

Step-by-step explanation:

because:

3.14 x 9^2 x 14/3 = 1186.92

4/3 x 3.14 x 9^3 = 1526.04

1186.92 + 1526.04 = 2712.96 = 2713 cubic inches

Which statement is true?

A: - 16/6 is equivalent to 8/3 because 8/3 x -2/-2 = - 16/6
B: 3/5 is equivalent to - 9/15 because 3/5 x 3/3 = - 9/15
C: 20/6 is equivalent to - 10/-3 because - 10/-3 x -2/-2 = 20/6
D: - 5/8 is equivalent to 20/32 because - 5/8 x 4/4 = 20/32

Answers

Answer:

pretty sure its c

Step-by-step explanation:

Answer:

Step-by-step explanation:

Please help me I will give brainliest

Answers

Answer:

Its been awhile i just need the points lol

Step-by-step explanation:

A poll showed that of the 108 people at the park, 1/9 of them had at least one pet. How many of the people at the park had at least one pet?

HeLpPpP PlZzZ

Answers

12 since
1/9 of 108= 12

Write an equivalent expression for 9a + 4a

Answers

Answer:

4a+9a

Step-by-step explanation:

Since you want an expression and not an answer this is equivalent.

Find the area of the shape shown below.

Answers

Answer:

Step-by-step explanation:

3+9=12

12/2=6

6x3=18

The answer to that has to be 18

1. How do you find the slope & y-intercept (non-proportional) from a table of x and y coordinates when using the Ti-Nspire?

2. How do analye a set of linear equations to desribce if there will be no solution, one solution, or infinitely many solutions?

3. How do you find the point of intersection of two linear equations when using the Ti-Nspire?

Answers

Answer:

I don't knwo

Step-by-step explanation:

because I suck at math

Aight so like please help me before I fail this test please! TwT

Answers

Answer:

It is B

Step-by-step explanation:

The answer is b have a great day

What is the area of the object above? (Picture Attached :D)

Answers

Answer:

126 in.

Step-by-step explanation:

12*8 = 96

5*6 = 30

96 + 30 = 126

(8 • 12) + (6 • 5)

Hopefully you can get the rest!

A bag of marbles contains 7 blue,
3 red, 11 yellow, and a green marbles.
What is the probability that Beth
randomly draws out a green marble
followed by a purple marble if she
doesn't put back the first marble?

Answers

Answer:

0 there are no purple marbels

Step-by-step explanation:

There are 0 purple in the bag

Help ASAP!!!
1) A deck of cards has 6 yellow, 6 green, and 3 orange cards. You pick 3 cards from the deck. Each card is returned to the deck after each one is chosen. What is the probability that you choose 3 orange cards in a row?

2) Examine the contents of the marble bag. What is the probability of choosing a red marble, blue marble, and green marble in that order? Each pick is not replaced. THE FIRST IMAGE IS FOR THIS QUESTION.

3) Each of the spinners shown are spun once. What is the probability that the first spinner will land on either letter A or B and the second spinner will land on an even number? THE SECOND IMAGE IS FOR THIS QUESTION.

Answers

Answer:

1) 3%

Step-by-step explanation:

Answer:

1) 1/125

2) 1/15

3) 1/6

Step-by-step explanation:

Total Cards = 6 + 6 + 3 = 15

Orange cards: 3

1) Chance of first card orange:

3/15, there are 3 orange, 15 total

Chance of second card orange:

3/15, since it is returned, there is the same chance, and the third the same

3/15 * 3/15 * 3/15 = 1/5 * 1/5 * 1/5 = 1/125

2) There are 6 total, 2 green, 2 blue, and 2 red.

The chance of getting a red marble first is 2/6, or 1/3, 6 marbles, 2 red.

The chance of getting blue second is 2/5, since picks aren't replaced.

Chance of getting green third is 2/4, or 1/2, since picks aren't replaced

1/3 * 2/5 * 1/2 = 2/30, or 1/15

3) First spinner has 6 total, 2 are A or B, so 2/6 or 1/3.

Second spinner has 4 total, 2 evens, so 2/4 or 1/2

Now multiply 1/3 * 1/2 = 1/6

a bag of marbles contains 7 blue 3 red 11 yellow and 9 green barbles what is the probability that both randomly draws out a green marble followed by a purple marble is she doesn't put back the first marble

Answers

0% there are no purple marbles

Answer:

31%

Step-by-step explanation:

30 total marbles. 1 is taken out. 29 are left, 9 green marbles divided by 29 total marbles = 31% chance to pull out a green one.

The rate at which Pete’s Bakery can make pies is shown in the graph.
Question 1
Part A

How many pies can Pete’s Bakery make in 7 hours?

Answers

i think the answer would be 17 pies

please help me out! fast! thank you and please answer it correctly or you'll get reported!!

there both on the same page its because i couldnt fit them in! so 2 screenshots! again please answer it correctly. you'll be able to get brainleist asap if you answer it the right way

Answers

Answer:

A (3,3)

B (1,4)

C (4,1)

D (2,0)

E (0, 1.5)

Step-by-step explanation:

A point is (x, y) in which x is how many points the mark is to the left or right of the origin, and y is how many points the mark is up or down from the origin.

Each of three friends flips a coin 70 times. The results for each friend are shown in the tables. Find the relative frequency for the event "heads" for each friend. If the friends combine their results to get 91 heads and 119 tails, what is the relative frequency for the event "heads"? Use pencil and paper. Suppose each friend flips a coin 700 times. Is there a value you would expect the relative frequency for the event "heads" to be close to?

Answers

Answer:

Well the answer is simple fliping a coin is a 50/50 always

Step-by-step explanation:

x + 6 = -x - 6 PLS HELP MEH ANSWER

Answers

Answer:

x = -6

Step-by-step explanation:

x + 6 = -x - 6

2x = -12

x = -6

x+6 Hope you got it right

Pls help need it for today

Answers

Answer:

It will take about 5 years to reach the same population

Find the measure of ∠U.

A. 122°
B. 58°
C. 130°
D. 128°

Answers

The answer is A. 122°

The answer would be C.130

Find the surface area of the square pyramid. Draw a net to find the area of the base and each face of the pyramid.

Answers

132! Read on for explanation..... So first step is to choose which to solve (either way works) for example let’s start with the base, the base is a square and a square will always have to the same measurements on each side so for the base you find your measurement, which is 6, so you multiply 6 by 6 to get 36, then you move on to the triangles, for the triangles it’s also asking the same thing as the base, but now it’s asking for the height and the base which the height is 8 and the base is 6, so you multiply those two numbers and get 48 BUT you also have to multiply 48 by 1/2 because the formula for a triangle is A = BH1/2 so 48 multiplied by 1/2 is 24 and instead of doing this for each side, you can simply multiply 24 by 4, because there are 4 triangles that make that shape complete, so 24 times 4 is 96, now you have add the sums, 96 plus 36 equals 132. and don’t forget to put 132 square ft.

Terms, Coefficients and constants for 10x+2.

Answers

Answer:

Terms= 10x,2. Coefficient=10

Constant=2

This is your answer ☺️☺️☺️

(I have two questions)

Question 1. Karen bought a doll 2 ft. 8. in tall for her little sister. She found a box that is 29 in. long. Will the doll fit in that box?

Question 2. Dan's dog likes to to out in the backyard, which is 85 ft. wide. The dog's chain is 17 ft. 6 in. long. If Dan attaches one end of the chain to a pole in the middle of the yard, will his dog be able to leave the yard?

Answers

Answer:

For #1 no the doll wont fit in the box because there is 12 inches in a foot 12+12+8=32 so no.#2 Yes because half of of 85 is 42.5 and 85-17.6=67.4 and that wont make it half way.

Step-by-step explanation:

Number is no because there is more than 12 in. (Only 12in in a foot). And 2 is yes because half of 85 is 42.5 and there’s more room than that.

"The length of the shortcut is ____ m."

PLEASE HELP ME ASAP!!!

Answers

It would be 10√65 or written in decimal form as 80.623

it would be 10/65

the answer written in decimal form: 80.623

Convert y - 1 = 2(x - 4)

y + 2x = -7

x = -2y - 8

y = 2x - 7

y = 2x - 3

PLEASE ANSWER FAST LOL

Answers

The answer is y=2x-7

answer: y=2x-7

explanation:
y-1=2(x-4)
y−1=2x−2·4
y−1=2x−8
(y−1)+1=(2x−8)+1
y−1+1=2x−8+1
y=2x−7

Is a triangle with leg lengths of 9 in. and 9 in. and hypotenuse of length √175 in. a right triangle?

Answers

Answer:

Step-by-step explanation:

a^2 + b^2 = c^2

9^2 + 9^2 = c^2

81 + 81 = c^2

162 = c^2

√162 = c

If it was a right triangle, its hypotenuse would be √162 inches long.

It’s 388382+ 73838383= 83929292 your welcome

HELP ASAP!!! NO LINKS OR YOU WILL BE REPORTED!! WILL GIVE BRAINLIEST!!!

Answers

Answer:

answer below

Step-by-step explanation:

2 units to the right and 1 up

because the figure to the left has to be moved on the position of the original (one on the right) and that will make it move the figure to the right 2 times and move it up 1 time to be on the exact same points in the figure that was marked

hope im right

2 units to the right and up 1 :))

Jaylen tried to evaluate the expression 12+24÷6×2. Here is his work:

12+24÷6×2

=

12+24÷12 Step 1

=

12+2 Step 2

=

14 Step 3

Is Jaylen's work correct?
why or why not

Answers

Answer:

Step-by-step explanation:

You need to do the division first so the steps would look like this:

12+4 x 2 step 1

12+8 step 2

20 step 3

Hope this helps!

There are 56 students for every 4 teachers in the sixth grade. How many teachers are there if there are 112 students in the cluster?

Answers

Answer:

8 teachers

Step-by-step explanation:

56 x 2 is 112 and 4 x 2 is 8

Eight teachers that is the answer

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