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3 years ago

How can polygons be considered a subcategory of two-dimensional figures?

Mathematics

1 answer:

Sonbull [250]3 years ago

6 0

I say subcategory would be a good answer

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What is the solution for the system of equations {4x−3y=36x−2y=4?

dimaraw [331]

Answer:

x = 1/25

y = 32/25

Step-by-step explanation:

3 0

3 years ago

There are three clubs at Redwood High School: Debate, Student council, and Key club. There are 1000 students in the school. And

hram777 [196]

Answer:

The number of students in the key club is 490

Step-by-step explanation:

The given parameters are;

The number of student in the school = 1000

The total number of student in the debate club = 310

The total number of student in the student council = 650

The total number of student who are in debate and student council = 170

The total number of student who are in both debate and the key club = 150

The total number of student who are in both student council and the key club = 180

The number of students who are in all three clubs = 50

Therefore, we have;

Let A represent the number of students in the debate club

Let B represent the number of students in the student council

Let C represent the number of students in the key club

We have;

n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(C∩A) + n(A∩B∩C)

Where;

n(A∪B∪C) = 1000

n(A) = 310

n(B) = 650

n(A∩B) = 170

n(B∩C) = 180

n(C∩A) = 150

n(A∩B∩C) = 50

Therefore;

n(C) = n(A∪B∪C) - (n(A) + n(B) - n(A∩B) - n(B∩C) - n(C∩A) + n(A∩B∩C))

Substituting the values gives;

n(C) = 1000 - (310 + 650 - 170 - 180 - 150 + 50) = 490

The number of students in the key club, n(C) = 490.

5 0

3 years ago

What is the equation of the following graph in vertex form?<br> (2, 1)<br> (0,5)

san4es73 [151]

Step-by-step explanation:

ur ans

8 0

2 years ago

Read 2 more answers

Coefficient of x^2 in expansion of the binomial theorem (2x-1)^4 show your work

tekilochka [14]

Answer:

Step-by-step explanation:

If you use Pascal's triangle, which I did, you will look at the 5th row of the triangle which contains the numbers 1, 4, 6, 4, 1

If we expand using a = 2x and b = -1, then the expansion looks like this:

$1(2x)^4(-1)^0+4(2x)^3(-1)^1+6(2x)^2(-1)^2+4(2x)^1(-1)^3+1(2x)^0(-1)^4$

If you simplify all that down by multiplying, you'll get

$16x^4-32x^3+24x^2-8x+1$

If you don't know how to use Pascal's triangle, you need to learn. It's so very cool!

4 0

3 years ago

Use Cramer's rule to solve 4x + 3y = 4, -3x - y = 7. Show your work.

nikklg [1K]

The answer is shown in the picture because it ran afoul of Brainly's "bad word" detector.

3 0

3 years ago