Mathematics Middle School

Helpp




Which statements are true about a decagonal (10-sided) pyramid? Check all that apply.

It has one face that is a decagon.
It has two faces that are decagons.
It has 11 faces.
It has 20 edges.
It has 20 vertices.

Answers

Answer 1
1 , 3 and 4
there is one decagon on the bottom of the pyramid (not two)
1 face on the bottom and 10 faces (one for each side of the bottom) makes 11 faces
10 edges on the bottom decagon and 10 edges coming up to the top vertices that makes 20
and there are only 11 vertices (10 for the decagon on the bottom and one at the top)

Related Questions

help please and thanks?!?!?!

Answers

Answer:Elimination will be easier

Step-by-step explanation:

you eliminate y by adding

Elimination would be a lot easier. The y’s cancel out leaving you with just the x’s. You would then combine all the leftover terms and solve for x. After you get x you plug it back into one of the equations and and solve for y. x=-2 and y=-7 or you can write it as (-2,-7)

Please Help!(I’ve been working on this problem for hours)

Answers

Sun is (.5,4.5) arrow (1.5,2) (4,4.5)
Plot is pretty self explanatory go over 3 up 3 and a half

Answer:

1. 0.5,4.5

2. 1.5,2

3. 4,4.5

Step-by-step explanation:

The sun is in the middle of both numbers, and there is a 1 gap, So we make it 1/2. To do that for each problem you add 0.5 for each answer in the middle.

Please Help Quick
25 Points!

Answers

1.) D
2.) Option 2
3.) B
4.) B

Make me brainiest pls
1. d
2, option 2
3. B
4.B

Please Help Me!! 15 points!!!

Answers

Answer:

The first one Im sure of

Step-by-step explanation:

I think the other answer is correct but I'm only seeing the explanation for the first choice

At the end of winter, the ski gear is on sale for 45% off. If you want to purchase a new snowboard priced at $340.00, how much would you pay?

Answers

Take .45 and multiply that and 340, that will be your answer

The work of a student to find the dimensions of a rectangle of area 6 + 8x and width 2 is shown below: Step 1: 6 + 8x Step 2: 2(4) + 2(6x) Step 3: 2(4 + 6x) Step 4: Dimensions of the rectangle are 2 and 4 + 6x In which step did the student first make an error and what is the correct step? (1 point) Question 14 options: 1) Step 3; 2 + (4 + 6x) 2) Step 3; 2 + (4 ⋅ 6x) 3) Step 2; 2(4) + 2(4x) 4) Step 2; 2(3) + 2(4x)

Answers

Step-by-step explanation:

Hello,A=IxwStep 1:6+8xStep 2:2(3)+2(4x)Step 3:2(3+4x)Step 4:The dimension of the rectangle are 2 and 3+4x. As a result, Students makes the mistake at Step 2; 2(3)+2(4x). Hope it help!

Answer: (4)

Step-by-step explanation:

At step 2 the student rewrites 6 as 2*(4), and 8x as 2*(6x). This is incireect, since 2*(4) is actually 8, and 2*(6x) is 12x.

The correct way to do it is to rewrite 6 as 2*(3), and rewrite 8x as 2*(4x), which corresponds to the answer option (4)

if Gordon types 2,976 words in 48 minutes. what is the unit rate.

Answers

divide 2976 by 48 so words per minute

NO LINKS OR I WILL REPORT
NEED ASAP
WILL MARK BRAINLIEST
AND NO UNESSECARY ANSWERS OR I WILL REPORT

Answers

Answer:

3. he would have saved 0.07 dollars per gallon

4. she used 2.5 meters per bow

3. He would have saved $1.26 if he went to the gas station across the street.

4.She used .4 of a ribbon for each bow.

5. It is a rate of $9 per pizza.

THESE R THE RIGHT ANSWERS! MARK THIS BRAINLIEST! HOPE THIS HELPED :)

Find the values of x and y that make each quadrilateral a parallelogram. Show your work.

Answers

Step-by-step explanation:

A. to make the quadrilateral a parallelogram, we have:

7y + 5 = 8y - 4

112 = 10x - 8

<=> y = 5 + 4

120 = 10x

<=> x = 12

y = 9

B.we have:

17 = 4x + 5

63 = 8y - 1

<=> 12 = 4x

64 = 8y

<=> x = 3

y = 8

solve -4(r- 2/3) +4 <-8

If correct I will give brainy. ASAP.

Answers

Answer:

6.67<-8

Step-by-step explanation:

-4(r- 2/3) +4= 20/3

20divided by 3 =6.666666667 which rounds to 6.67

6.67 < -8

Hope this is helpful! :)

Answer:

See explanation for answer.

Step-by-step explanation:

−4(r−2/3)+4<−8

−4r+20/3<−8

−4r+20/3−20/3<−8−20/3

−4r<−44/3

−4r/−4<−44/3/−4

Answer: r>11/3

I hope this helps!

Have a lovely day!

( I'm not sure if this is correct. Sorry, math is not my strongest subject. )

Resources Link: https://www.mathpapa.com/equation-solver/

What percentage of the data values are less than 88?

Answers

Answer:

50%

Step-by-step explanation:

Analyise the data, and you can figure it out.

.38 repeating or 39%

please help i have stuff to do

Answers

Wrong Category for the question

Part one: Identification
This assessment will cover the 3 types of linear equations we learned in Chapter 5. Start by identifying the types of equations and their components.

Answers

Answer:

y = mx + b is slope intercept form

Y - y1 = m(x - x1) is slope point form

Ax + Bv = C is standard form

Step-by-step explanation:

I can't believe you do this stuff in middle school, I only started learning this in 10th grade lol

What is the lateral surface area of a rectangular prism with a height of 5, a width of 6, and a base of 14?

Answers

Answer:336

Step-by-step explanation:5 times 6 is 24 and 24 times 14 is 336

Image Below: Can someone pls pls pls help me out? tysm
#1. What is the value of the lower quartile (Q1)?
#2. What is the IQR (inter-quartile range)?
#3. What is the range?
#4. What is the median?
#5. What is the value of the upper quartile (Q3)?
#6. Which of the four quartiles has the smallest range?
A. 1st quartile
B. 2nd quartile
C. 3rd quartile
D. 4th quartile
#7. What is the maximum value shown in the box-and-whisker-plot?

Answers

--Answer--

1. 4

2. 6

3. 14

4. 9

5. 10

6. A

7. 20

--Explanation--

1. The lower quartile is always the left side of the box.

2. The IQR is Quartile 1 minus Quartile 2, so you could subtract the number at the right of the box with the left.

3. The range is the highest number minus the lowest number. (The numbers that stretch out all the way til the lines stop)

4. The median is the line in the middle of the box.

5. The upper quartile is right of the box. (the vertical line)

6. The Lower Quartile Is Always Smaller Than The Upper Quartile.

7. The number all the way to the right of the number line.

Sorry if anything is incorrect, but I hope it helps :>

Marta's line of fit __ a line of best fit because her line __
Padra's line of fit__ ​a line of best fit because his line __

first part A. is
B. is not

Answers

Answer:

the awnser is B.

Step-by-step explanation:

No link/pic just type answer pls.

Answers

Answer:

675

Step-by-step explanation:

From a sample tray, 4 of the last 10 cake samples chosen were strawberry. Based on past data, of the next 20 samples taken, how many should you expect to be pieces of strawberry cake?

Answers

Answer:

8 out of 20 should be strawberry

Step-by-step explanation:

4 out of 10 were strawberry so

20 ÷ 10 = 2

2*4=8

8 because what ever you do to one number you must do to the other
4x2=8 10x2=20

Write and solve an equation for the word problem. Five more than twice a number is 27.

Answers

Answer:

5 + 2x = 27

Step-by-step explanation:

Five more than twice a number is 27 is 5 + 2x = 27

Uuuuuuuuuuyyyyyyyyy

Please help me. I will give brainliest

Answers

Answer:

B

Because the domain is on going and the y can only go so much which would be less than or equal to 2

A gym class has 4 juniors,3 sophomores, 2 seniors, and 1 freshman.The coach wants to pick a team leader for the next game.What is the probability that he will chose a junior?

Also if u get the answer as fraction or percent, can you convert to decimal pls , thank you :)

Answers

Answer:

4/10 which simplifies to 2/5 or 40%

it would be a 4 out of 10 chance which is 40% or .4

What is the area of the rectangle? square feetWhat is the volume of a rectangular solid that is 6 feet long, 4 feet wide, and 2 feet high? 24 cubic feet 26 cubic feet 46 cubic feet 48 cubic feet

Answers

Answer:

The area is 24 cubic feet and the volume is 48 cubic feet.

Step-by-step explanation:

Area is length x width so 6 x 4 is 24
Volume is length x width x height so
6 x 4 x 2 is 48

Answer:

48 cubic feet

Step-by-step explanation:

v= l×w×h

v = 6×4×2

v = 48

Help me pls i will love you forever lol

Answers

Answer: First one

Step-by-step explanation:

Answer:
A = 8 yd
B = 2 yd
C = 5 yd
D = 2 yd

132 yd^2

on tuesday, lexi made 6 kiloliters of lemonade to sell. She sell her lemond by the glass, with each glass holding 100 centiliters. if dells 4200 glasses of lemonade that day, how many liters of lemonade does she have left over.

Answers

Answer:

18 liters

Step-by-step explanation:

since 6 kiloliters are equal to 600000 centiliters you would have to divide it by 100. Then you will get 6000 centiliters which you subtract by 4200 centiliters. After that, you get 1800 centiliters which is equal to 18n liters.

I NEED HELP ON THISSS!!!!!!!!

Answers

Answer:

1) x=0.3 y=2.2

2) x=6 y=9

Step-by-step explanation:

1/5 is 20% because 100 divided by 5 is 20. So 11 and 1.5 times 0.20 will get the amount for 20% aka 1/5. So 1.5, x, times 0.20 is 0.3. 11, y, times 0.20 is 2.2. For the next problem, 1:3 means that you multiply a side on E by 3 to get that same side on D. So 3, y, times 3 is 9. To get x, you reverse it. So 18, x, divided by 3 is 6.

1- 0.3 and 2- 2.2

Ggghjhbeejwnsjw

Probability can be between what two numbers?

Answers

0 and 1.

A probability of 0 means that the event will not happen. For example, if the chance of being involved in a road traffic accident was 0 this would mean it would never happen. You would be perfectly safe. A probability of 1 means that the event will happen.

Choose all that give the correct solution for the system of equations.
Solution (1, 4)



Solution (2, −2)



Solution (4, −4)



Solution (−2, −2)



Solution (4, −2)


this is a usatestprep question

PLEASE HELP I WILL MARK BRANLIEST TO WHOEVERS RIGHT

Answers

Answer:

First solution is (1,4) so correct

Second solution is (2,-2) so correct

Third solution is (-2 ,1) so incorrect

Fourth solution is (-2,-2) so correct

Fifth solution is (3, -1) so incorrect

Step-by-step explanation:

Please ACTUALLY answer!! And show work

Answers

Answer:

The y intercept is kinda in the middle but if it was approximate then probably 4 and the equation would be y= 1x +4

Step-by-step explanation:

The y intercept is 4 because that where the line hits on the y axis and the x would be 1 because it goes up one and over one to the next dot. If i were to guess i think how many months for 13 matches it might be around 3 but sry if that's not right

Aika spent a total of 80 minutes to complete her math and science homework. The ratio of the amount of time she spent to complete her science homework to the amount the time she spent to complete her math homework was 3 : 2. How many minutes did she spend on her math homework?

Answers

3+2 = 5
80/5 = 16
16 x 2 = 32 - math
16 x 3 = 48 - science
48 + 32 = 80 so she spent 32 minutes on math

HELP
A rectangular prism can be filled with 210 half-inch cubes. How many 1/4inch cubes does it take to fill the same prism?

Answers

Answer:

410 1/2 inch cubes

Step-by-step explanation:

if 210 1/2 inch cubes can fit

then 410 is doubble of 210

A rectangular prism can be filled with 210 half-inch cubes. 410 1/4 inch cubes are required to fill the same prism.

A rectangular prism can be filled with 210 half-inch cubes, we need to find how many 1/4inch cubes does it take to fill the same prism

What is area of rectangle?

area of rectangle=Length*/breadth

A rectangular prism can be filled with 210 half-inch cubes.

if 210 1/2 inch cubes can fit.

410 1/4inch cubes does it take to fill the same prism because 410 1/2 is double of 210 1/2.

Therefore 410 1/4 inch cubes are required to fill the prism.

To learn more about Area of rectangle click here:

https://brainly.com/question/23747859

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