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

PLZZZZZZZZZ HELP ME THIS IS DUE TODAY

Answers

answer:
2, 5, 8, 11, 14
3/2
explanation:
linear functions go up by the same x and same y (f(x))
so while x is going up by 2, y is going up by 3
y/x
the rate of change is 3/2

Help, me easy and fast! Just dont understand it

Answers

Answer:

1. She would have 67.5 dollars

2. 23 weeks

3. 11.25/week

4. 3:2

Step-by-step explanation:

1. 45/4 = 11.25. 11.25 x 6 = 67.5

2. 250/11.25 = 22.22 (rounding up would be 23 weeks)

3. 11.25/week

4. 3:2 (just flip the ratio around)

sorry if some are incorrect

Answer:

$67.50

Step-by-step explanation:

What you do is you divide $45 by 4, which is 11.25, which you then mutiply by 6, which equals 67.5

Two angles are complementary. One angle is 52°.
How many degrees is the other angle?
Geometry

Answers

Answer:

you are correct :)

Step-by-step explanation:

complementary angels equal 90 degrees so you do 90-52

supplementary angels on the other hand, equal 180 degrees

It is 38° because complementary is 90° so 90° - 52° = 38°
Good Job!

The box plot below represents some data set. What is the range of the data?

Answers

30 to 150.............................
Answer: The rage for the data is 50-150

what's the missing measurement ? pls help :]

Answers

Answer:

first one: 33 degress

second one: 67 degrees

Step-by-step explanation:

the total measurement for every triangle is 180 so js add up what they give you and subtract it from 180.

hope this helps

Answer:

Step-by-step explanation:

Sum of all angles of a triangle = 180

1) 60 + 87 + b = 180

          147 + b = 180       {Subtract 140 from both sides}

                   b = 180 - 147

b = 33

2) b + 83 + 30 = 180

          b + 113 = 180    {Subtract 113 from both sides}

                  b = 180 - 113

b = 67

To qualify for the postcard rate for postage, a postcard must be less than 4 1/4 inches high. Elayne has a postcard that is 4 7/8 inches high. How much is her postcard over the height limit?

Answers

Answer:

5

Step-by-step explanation:

s0 obasically yah

5/8 inches

The postcard must be less than 4 1/4 inches high.
Elayne's postcard is 4 7/8 inches high.
We need to subtract the limit from the height of her postcard to know how high it is above the limit:
4 7/8 - 4 1/4 = 5/8
Her postcard is higher than the limit by 5/8 inches.

What is the approximate area of the shaded region?
Margarita traces a circle with a radius of 20 centimeters like the circle shown below. She will color in the shaded region.

Answers

Answer:

The area of the circle is 1256cm squared

Step-by-step explanation:

3.14(20 x 20)

3.14(400)

A : 1256cm squared

Answer:

20

Step-by-step explanation:

what is the area of LMN

Answers

Answer:

238

Step-by-step explanation:

Area of a triangle= base x height/ 2

A= 34x14=476

A=476/2=238

Answer: I believe 238!

show ur work: Gianna is painting a circular canvas whose diameter is 3 feet. How many square feet of paint coverage will she need? Round your answer to the nearest whole number.
if u help me ily <3

Answers

7 ft^2. Pi*1.5^2 = approx 7 :3
the answer is 7 sgeosbebbdndnd

find the value of w ?

Answers

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

[tex]w = 30°[/tex]

⎇ w = 30° because its vertically opposite angle is also equal to 30°. Vertically opposite angles are equal to each other.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

The value of w is 30 degrees.

the angle that is already marked 30 degrees is the same angle just on opposite sides . meaning that they equal the same amount .

Therefore , leading to 30 degrees.

CALLING EXPERTS!!! PLEASE HELP

Answers

The circle is open if the inequality is greater than (>) or less than (<) and closed if the inequality is greater than or equal to (≥) or less than or equal to (≤)
If the arrow points to the right (—>) towards bigger numbers, x (whatever number is on the line) will be GREATER (> or ≥)
If the arrow o points to the left (<—) towards smaller numbers, x will be LESSER (< or ≤)

1. Starts at -2 with a closed circle and goes in the positive direction —>
So x ≥ -2
2. Starts at 2 with an open circle and goes in the negative direction <—
So x<2

And the rest use the same method.

Answer:

Green answers in order of 1-7 as green appears

Just show the ones at start of each answer in bold

1)  x  ≥ -2    closed circle start   opp/s   x ≤ 0  closed circle stop

2) x < -2    open circle stops    opp/s   x ≥ 0  closed circle start

3) x > 2      open circle starts    opp/s   x ≤ 0  closed circle stops

4) x ≤ 2     closed circle stops  opp/s   x ≥ 0 closed circle starts

5) x < 2        open circle stops   opp/s  x ≥-6  closed circle starts  

6) x > 2      open circle starts   opp/s   x ≤ 6  closed circle stops  

7)  x < -2     open circle stops   opp/s   x ≥ -6  closed circle starts  

Step-by-step explanation:

Rule 1   closed circle is   ≥  right   open circle shows > right

Rule 2  closed circle is   ≤ left   open circle shows < left

Rule 3  with inequalities on line   x > 2 means it starts from this value and moves right.

Rule 4 with inequalities on line  x < 2 means it ends in this value.

Rule 5   Remember rule 3 and rule 4  for direction start and stop

remember rule 1+ rule 2 for choice of closed circle etc.

When each side of a rectangular prism is doubled, how does the volume of the new rectangular prism compare to the original prism?

A. The volume will be 4 times the original volume.

B. The volume will be 8 times the original volume.

C. The volume will be double the original volume.

D. The volume will be one-half the original volume.

Answers

I believe the Correct answer is B if I’m right please mark me as brainliest

Which of the following represents the graph of the equation y = -2x + 1?

Answers

Answer:

Graph D

Step-by-step explanation:

For graph A)

Equation would be: y = 2x + 1

For graph B)

Equation would be: y = 2x - 1

For graph C)

Equation would be: y = -2x - 1

For graph D)

Equation would be: y = -2x + 1

Hope this helps!

answer : D

steps :

graph the line using the slope and y-intercept, or two points.

slope: −2 (down 2, right 1)

y-intercept: (0,1) (where the line intercepts the y axis)

your points for your line:

[tex]\left[\begin{array}{ccc}x&y\\0&1\\1&-1\end{array}\right][/tex]

solution : the graph in answer D.

hope this helps !

- audrey ♡

Chloe has been offered a new job in the women’s shoe department at Macy’s. She has two salary options. She can receive a salary of $600 per week (Option 1), or receive $350 per week plus 8% of her weekly sales (Option 2).
If Chloe has $3,200 in weekly sales, she will earn more money with
If x represents Chloe’s weekly sales, the following equation can be used to determine which option will benefit her the most:
If x represents Chloe’s weekly sales, she will earn more money with Option 1 when

Answers

1) $600 with option 1 or (3200)(.08) +350, 256+350= $606 with option 2, so option 2 is more money
2) for option one the equation is y=600, for option 2 the equation is y= 0.08x + 350
3) Chloe will earn more with option 1, when her weekly sales are less than $3125
Chloe will earn more money with option 1

i need help please help and dont guess and FYI 492.8 ft is no the answer if you get it right ill give you brainly and I be your friend if not then will report you ;)

Answers

Answer:

I think it is the fist one bc when you do legth times width you get 308 ft

Step-by-step explanation: please dont get mad at me if im wrong

Help ASAP i need the answer to this question plsss NO LINKS AND NO DOING IT JUST FOR THE POINTS Will give brainliest and just because i say don't do it just for the points doesn't mean i don't want you to do it i'm just saying that because i don't want random answers i want the right answers with work shown

Answers

( D (7,4) E (4,8) F (4,2)
Yes I agree with the answer above I did the work and checked it

q1 eeeeeeeeeeeeeeeeeeeeeeeeeee :/

Answers

The answer would be 40%
The answer would be 40%

PLEASE HELP ANSWER ASAP NO LINKS PLZ

Answers

Answer:

Y = 4

Step-by-step explanation:

12 - 8 = 4  and if you put another triangle it will look like a complete square, so you will need to subtract it     Hope it Helps  

The answer is 9

EXPLAINING!
c squared - a squared = b squared
c=12 and a=8
12x12=144 and 8x8=64
144-64=80
find the square root and that makes 9
hope that helped!

Let x be the number of hours that Chaya studies for a test and let y be the number of points she receives on the test. For one test, Chaya studied for 5 hours and received 14 points. Select all the equations that could describe Chaya’s grades and her study time.

Answers

Answer:

A and C I think

Step-by-step explanation:

2.8 x 5 = 14, and 5 + 9 = 14.

Answer:

the answer is y=2.8x and y=x+9

Step-by-step explanation:

hope this helped

Please help me with this question

Answers

Answer:

56 and 7 its going by 5

Step-by-step explanation:

it is what it is yes ma’am

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

QUESTION: How does finding the volume of a 3- dimensional object differ from finding the surface area?

Answers

Answer:

For the surface area, you are calculating the outer surface of an object. You calculate the 2-dimensional area of the outsides and add them up.

For the volume, you are calculating the inside space of an object. You calculate based on length, width, and height.

Aaron has 14 2/5 feet of rope. *He cuts it equally into 2 pieces. *He then cuts 1 of these pieces into 2/5 foot sections. How many sections, that are 2/5 foot long, does Aaron have?

Answers

He has 18 sections that are 2/5 feet long plz mark me branliest
He has 18 2/5 foot long pieces

Jade uses $30 from her checking account to donate money to her favorite charity. Will this be a deposit or a
withdrawal when she enters the information into her check register? Explain

Answers

Answer:

deposit

Step-by-step explanation:

It would be a withdrawal, because she’s taking money out of her account

May I please get help on this/

Answers

Answer:

8 would be your answer

Step-by-step explanation:

brainlest pls

Answer:

C) 8

Step-by-step explanation:

Each bracelet takes 1/6 yard of wire to make.

Marianna starts with 2 yards of wire, and ends with 2/3 yard remaining.

First, change all terms to be over 6:

1/6 = 1/6

2 x 6/6 = 12/6

2/3 x 2/2 = 4/6

12 yards of wire - 4 yards of wire = 8 yards of wire. Each bracelet uses 1 yard, ∴ 8 bracelets are made.

8 bracelets is your answer.

~

Are the forces in this image pushing or pulling?

Answers

Answer:

pulling

Step-by-step explanation:

They are pulling. Since it’s tug of rope they’re each exerting a pulling force, with the person on the right acting 10kg more than the left.

24 31 12 38 15
For the following numbers please preform the following

1.Mean ( average )-

2.Mode ( number that occurs the most)-

3. Range ( highest - lowest)-5 number summary : box plot : box & whiskers ( All the same thing )

Min-

Q1 ( lower median )-

Q2 ( median )-

Q3 ( upper median )-

Max-

5. Interquartile Range- ( Q3-Q1)-

The variance is the average of the squared differences from the mean. Standard deviation is the square root of the variance

6. Variance

7. Standard Deviation

Answers

Answer:

Mean: 24

Mode: No mode

Range: 26

Min: 12

Q1: 13.5

Q2: 24

Q3: 34.5

Max: 38

IQR: 21

Variance: s^2 ≈ 117.5

Standard Deviation: 10.8

Step-by-step explanation:

what the dude above me said

HELP!!
will give brainliest

Answers

Answer:

B

Step-by-step explanation:

Heres the link if you need to do something like this again.

https://www.calculator.net/surface-area-calculator.html

really.... that is not very pogchampion of you brainly :(( i didn't use any mean phrases

Answers

Answer:

POGGG

Step-by-step explanation:

Help please! Also don't comment if you don't know or you claim you'll 'send me the link'

Answers

I believe the answer to be 12.5%





Answer:

12.5

Step-by-step explanation:

Explain how the shapes shown have been sorted.

Answers

Answer:

Shapes in set A are all Quadrilaterals which are Parallelograms, whereas shapes in set B are all Quadrilaterals but one different than the other.

Hope this helps!

In both cases, we have sets of 3 quadrilaterals, such that in the first case the 3 belong to the same subset, and in B they don't.

How the shapes are sorted?

On case A, all the shapes are quadrilaterals, and the 3 figures are rhombi. So all belong to the same type of quadrilaterals, which is the type of figure with four sides, such that the opposite sides are parallel and have the same measure.

For case B we also have 3 quadrilaterals, but this time we have a rectangle, a square (which is a type of rectangle) and a non-rectangle quadrilateral. So this time, the 3 figures don't belong to the same type of quadrilaterals.

If you want to learn more about quadrilaterals, you can read:

https://brainly.com/question/16691874

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You are being asked to consider selling one of your regional divisions to a private equity company. The private equity company has just offered you $1.2 million for the regional division. The division is expected to provide your company net annual cash flows of $175,000 for each of the next 10 years without you having to make any additional investments in the division. Your team has calculated information to help you make your decision, as follows.A) Your company's WACC is 7.9%B) Your hurdle rate for this potential sale is 11.2%C) The Net Present Value of this opportunity to your company using WACC as your discount rate is (-$20,420.78)D) The likely Net Present Value of the division to the private equity company following the sale is $13,776.23Which of the following answers is correct given the information provided above?1) The IRR of the project to your company is between 7.9% and 11.2%2) The hurdle rate for the private equity company is higher than the hurdle rate for your company3) The IRR of the project to your company is below 7.9%4) None of the Above The principle of natural selection states that the best adapted organisms are most likely to survive and reproduce. Was this demonstrated in your experiment? Explain. A secret agent being a mathematician, transmitted an important 2-digit locker number inthe following manner: The difference in the digits is four. The sum of the number and the number formed by reversing the digits is 132. Find the locker number. please help me! multiple choice HELP!! 5) Which number is IRRATIONAL?A) V9B) V27C) V36D) V81 The diameter of a dime is 17.91 millimeters, an the height is 1.35 millimeters. What is the volume of a dime? What is the volume of an oblique cylinder formed by stacking 50 dimes? Round your answers to the nearest hundredth. HELP CAN SOMEONE TELL ME THE ANSWER I CANT GET A BAD GRADE. Two recreational basketball teams, Eagleton and Hawkville, wanted to compare the heights of their players in inches.The heights of Eagleton's basketball players are 70, 71, 72, 74, 74, 75, and 75. The mean height of the Eagleton players is 73 inchesThe heights of Hawkville's basketball players are 70, 70, 71, 72, 72, 72, and 77. The mean height of the Hawkville players is 72 inches.Which statement is true?Team Hawkvilles's players heights vary the same amount as Team Eagleton's players heights.The range of Eagleton's players heights is greater than the range of Hawkville's players heights.Team Hawkville's players heights vary more than Team Eagleton's players heights.Team Eagleton's players heights vary more than the heights of Hawkville's players. what are inner thoughts? Translate They always walk into Spanish by filling in the missing letters:E |__e_pr_cam_n_ Which of the following set of angle measures represents the measures of the angles of a triangle? Free 5 points !Which word does not belong? descubrirresolverplaticaraveriguarANSWERS1.) C. platicar 2.) D. cuerpo 3.) C. a murderer 4.) B. closed5.) B. to kill Many people try to eliminate fat from their diets. Which is one reason it isnecessary for humans to eat fat? Which is not Equivalent to 3:5 A.30:50B.21:28C:15:28D.9:15 PLEASE HELP ASAP I have no idea how to solve this pls pls pls I would really like some help with this. If anyone is able to help me. please, help me with this fast!! I'm giving points!!!! A group of friends are ordering food. The total amount that they can spend on their food bill is $41, including the delivery charge of $6. The equation below represents the situation, where x is cost of each friends meal. 6+ax=41 The cost of each friends meal in terms of a is?The cost of each friends meal when the number of friends is 5 is $? Read this excerpt from Fever 1793.Andrew Brown's print shop smelled of ink and grease and the sweat of muscular apprentices carrying trays of lead type from the composing table to the printing press. When I was a child, Mr. Brown let me pick out letters and set them in the form. It had been a thrill seeing my words in print.The printer issued no invitation to me that morning. He was deep in conversation with Mr. Carris as we entered.Readers understand Andrew Brown's feelings based on hisdirect statementsunusual actions.work habits.attitude toward others. 3. Which would be considered to be a behavioral adaptation?a. The cell walls of diatoms are clear, allowing sunlight to penetrate for photosynthesis.b. A tunas body is torpedo-shaped, which reduces friction as the fish swims at high speeds.c. Albatross perform a mating dance to attract partners.d. Sargassum, a type of red algae, has air pockets that contribute to the organisms ability to float.