Mathematics College

In your own words, explain
what two-dimensional (2-D)
and three dimensional (3-D)
models are. Give an example
of one you've seen recently.

Answers

Answer 1

Answer:

a 2d is basically something that is flat, or like a graph. it doesnt have a volume.

a 3d is something that has a volume, it has sides and front and back.

2d ex; a graph on paper

3d ex; a square or rectangular box

Step-by-step explanation:

hope it helps

Related Questions

José’s mother is trying to decide whether or not she should buy a 12-ounce package of coffee on sale for $7.50. She knows that she can buy the same coffee for $9.00 per pound. Which is the better buy?

Answers

She should chose the $9 because it is cheaper ;)

» How many digits will be in the quotient?
39)4,641

Answers

Answer:

There will be three digits in the quotient.

Step-by-step explanation:

The answer would be 119. Hope this helped ^^✨

Simplify the expression.

7y + 4 + 9 - 2y PLEASE HELP ME MY LIFE DEPENDS ON IT

Answers

Answer:5y+13

Step-by-step explanation:

Answer:

5y+13

Step-by-step explanation:

You add 7y and -2y

and then add 4+9

which is  5y+13

How would you wright this as a decimal number ?

Answers

Hi there! :)

[tex]\large\boxed{-8.4}[/tex]

We can calculate the decimal by converting the fraction to an improper fraction, then dividing.

Derive the inpromper fraction by:

[tex]a\frac{b}{c} = \frac{c * a + b}{c}[/tex]

In this instance:

[tex]-8\frac{2}{5} = \frac{-8* 5 -2 }{5} = \frac{-42}{5}[/tex]

Divide:

-42 ÷ 5 = -8.4.

HELP ME OR MY MOM WILL KILL ME, IT IS DUE TODAY. OH LORD! you get 26 points if you help!!!!!!!!

Answers

Answer:

cant see the picture

Step-by-step explanation:

ptxx cnt see the pic

1.Refer to the system of linear equations shown below. Which of the following statements gives the best choice for multiplying to solve this system using the elimination method?
3x−6y=4

6x+11y=−2

(1 point)

Multiply the second equation by 12, so the x-variables are eliminated.

Multiply the first equation by 2, so the x-variables are eliminated.

Multiply the first equation by −11 and the second equation by 6, so the y-variables are eliminated.

Multiply the first equation by −2, so the x-variables are eliminated.
2.Given the following system, what should the second equation be multiplied by so that x is eliminated?

4x−y=9

x+3y=12

(1 point)

13

−4

−13

4
3.Solve the following system by the elimination method.

4x−2y=16

3x+6y=−18

(1 point)

(1, −5)

(3, −2)

(2, −4)

(0, −3)
4.Solve the system by the elimination method.

3x−5y=4

−9x+3y=−24

(1 point)

(8, 4)

(1, −1)

(3, 1)

(2, −2)
5.Manny says he should multiply the first equation in the system of equations below by 3 and the second equation by 2, then add to eliminate x. Is there a more efficient way to solve this system? Explain your answer.

−2x+y=15

3x+4y=−12

(1 point)

No, there isn't a more efficient way to solve this system.

Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.

Answers

Tu crois je suis ton chien

NEED HELP ASAP!!!!!!!!!

Answers

Answer:

-40

-11

-3

11

15

Step-by-step explanation:

the further your away from zero on the left on a number line the smaller the number gets and the further your away from zero on the right on a number line the greater it gets

Answer:

-40, -11, -3, 11, 15

And that us the answer

PLEASE HELP QUICK I HAVE NO CLUE

Answers

Answer:

51 + 85 = 136

Step-by-step explanation:

Hi,

The ratio of two numbers is 3 to 5.

Let x represent the constant of the proportionality

 3x + 5x = 136

    8x = 136 (divide both sides by 8)

x = 17

The numbers are:

3*17 = 51 and

5*17 = 85

CHECKING our answer***

  51 + 85 = 136

Answer:

51 and 85

Step-by-step explanation:

add the two ratio parts (3 & 5) and divide by total. you get 17. then multiply the parts by 3 and 5 to get the answer

!!!!PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!

Find the error and explain why it is wrong

(please phrase answer in the form of this sentence: step _____ is incorrect because ______. Instead, you should ____________.

Answers

Answer:

Step C

Step-by-step explanation:

Incorrect Step is C:

-x = y + 3 incorrectx = -y + 3 correct

Gianna cuts a ribbon into equal pieces as shown below. She uses 4 pieces of the ribbon for a project. What fraction of the ribbon does Gianna use for the project? Explain how you found your answer.

Answers

1/4

ONE of the FOUR total pieces was used.

Carly earned some money doing odd jobs last summer and put it in a savings account that earns 5% interest compounded quarterly. After 2 years, there is $400.00 in the account. How much did Carly earn doing odd jobs? * A. 155.90 B. 441.79 C. 390.18 D. 362.16​

Answers

I believe it’s 362.16 but not 100%

PLEASE I NEED HELP WITH MATH!

Answers

Answer:

m<x= 53

Step-by-step explanation:

m<x = m<y

so...

all you do is 180-128= 53

because m<z = m<y too

and the m<z+128=180

They earned 12% of 5,000 in sales. How much did they get paid

Answers

Answer: 600

explanation:

12% of 5,000 = 600

What is the value of x?

Answers

Answer:

x = 16

Step-by-step explanation:

(x+2) + (7x+2) + (3x) = 180

Add like terms  

7x + x + 3x = 11x

2 + 2 = 4

11x + 4 = 180

Subtract 4

11x + 4 = 180

11x = 176

Divide by 11

11x = 176

x = 16

Which of the following should you do first when solving the equation 2x-7=3x-2(x+8)

Answers

Answer:

multiply 3x-2(x+8)

Step-by-step explanation:

PEMDAS

also you must simplify both sides to solve this problem and that's the first step to simplifying this side (the other one is simplified)

Answer:

You should start the question of by  distibuting the group 2(x+8)

Step-by-step explanation:

This is the most imoortant step to start off with because of:

GEMDAS

group, exponent, multiply, divide, add and subtract

Last year 950 people attended a town's annual parade. This year 1,520 people attended. What was the percent increase in attendance from last year to this year?

Answers

Answer: 60% increase

Step-by-step explanation: look up calculator soup if you have more questions like this

Find
how
many times
21
+
9 goes
into 131
2​

Answers

Answer:

it goes in 4 times I rounded up to 30 and 30 times 4 is around there

Ginger cut 9 yards of fabric into pieces that are yard long. How many -yard pieces did she make from the 9 yards of fabric?
A. 2 1/4
B. 8 3/4
C. 13
D. 36

Answers

Answer:   c i think                                                      

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

PLZ ANSWER IF U KNOW THE ANSWER​

Answers

Answer:

-5, 2

9, 2

2, -5

2, 9

Step-by-step explanation:

Just count units above, below, to the right, and to the left.

Write the following ratios in their simplest form 5/6 : 2/3

Answers

It’s 2/3 I think I’m right

Help pls ;) if u help luv u

Answers

Answer:

Step-by-step explanation:

c

I Think it would be c but I’m not so sure to list to me just in case listen to anyone else

how do I solve this? ​

Answers

Answer:

pythagoren therom, law of sine, cosine, and tangent

Step-by-step explanation:

A plane set off to Portland at a speed of 232 mph. On the
return flight of 12 hours, the plane cruised at 204 mph.
How many hours long was the flight to Portland?

Answers

Answer:

The flight to Portland takes 10.6 hours.

Step-by-step explanation:

To find the time of flight to Portland we need to calculate the distance traveled by using the equation:

[tex] x = v*t [/tex]

Where:

v: is the speed = 204 mph (return flight)

t: is the time = 12 h (return flight)

[tex] x = v*t = 204 mi/h*12 h = 2448 mi [/tex]

Now, we can find the time of flight to Portland using v = 232 mph:

[tex]t = \frac{x}{v} = \frac{2448 mi}{232 mi/h} = 10.6 h[/tex]

Therefore, the flight to Portland takes 10.6 hours.

I hope it helps you!                      

Marcus was showing how he solved a division problem with the area model below. His pen exploded ink on some of his work.

What is the divisor that is covered with ink on the left side of the model?

A. 100
B. 80
C. 56
D. 29

Answers

Answer:

C

Step-by-step explanation:

-3 + x = x - 3
A.one solution B.no solution C. Infinite solution

Answers

Answer:

c is the answer for the question

Answer:

C. Infinite solution

Step-by-step explanation:

Since, both the equations are same, therefore given equation has infinitely many solutions...

10. Doug has added two decimal numbers. His work is shown.
14.2
+ 6.25
7.67
Doug's answer is incorrect. What did he do wrong? What should his sum be?
hurry please .

Answers

Doug didn’t line up the decimals, so his answer would be incorrect. His answer should be 20.45

80 is what percent 300 ( please explain)

Answers

it’s about 26.67%... hope this helps!

(80×100):300=

8000:300=26.67

so 80 percent of 300 is 26.67

Find the equation of the line that goes through the points (-2, 5) and (3, 1).

Answers

Answer:

y=-4x+13 this is what i think

Step-by-step explanation:

A card is randomly selected out of a standard 52 deck of cards. What is the probability of selecting a queen or a
heart?
Leave your answer as a fraction in lowest terms
​

Answers

Hello,

Answer: 1/52 (Queen) 1/52 (Heart)

Further explaining: A 52 deck of cards has one each of queen and heart. So take the selected card, and plug it into the numerator and the total, (including selected card) and add that into the denominator.
Hope this helps!

jurgen runs a 26 mile race in 5 h. greta runs a 15-mile race in 2 h. Who runs at a slower rate?

Answers

Jurgen runs at a pace of 5.2mph
Greta runs at a pace of 7.5mph
Jurgen has a slower rate by 2.3 mph
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