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Kobotan [32]
2 years ago
9

A box of colored crayons contains 11 distinct colors. In how many ways can 2 colors be chosen, assuming that the order of the co

lors chosen doesn’t matter? (If necessary consult a list of formulas.)
Mathematics
2 answers:
Oduvanchick [21]2 years ago
5 0

Answer:

55

Step-by-step explanation:

The first crayon is chosen out of 11,so there are 11 choices

11

The second crayon is chosen out of 10 crayons left so there are 10 choices

10

11*10 = 110

But we do not care about the order, so we divide by 2 since there are 2 places

110/2 =55

Molodets [167]2 years ago
4 0

Answer:

55

Step-by-step explanation:

Equation is a = n * (n-1)

11 * 10 = 110

Order doesn't matter, and two colors, so divide by 2.

110/2 = 55

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PLEASE HELP! EASY MATH! GIVING BRAINLIEST!
grin007 [14]

Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) The dimensions of this surface are 6 in x 6 in

Part 3) Molly needs to paint 228 square inches

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) Which surface is shared by the two solids?

we know that

The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2)  What are the dimensions of this surface?

The surface is a square with side length 6 inches

so

The dimensions of this surface are 6 in x 6 in

Part 3) what is the area molly needs to paint?

we know that

The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids

so

therefore

Molly needs to paint 228 square inches

<em>i hope this helps you</em>

6 0
3 years ago
Need answer ASAP this assignment is due tomorrow
dmitriy555 [2]

Answer:

Venn diagrams, De'moivres rule and probability

Step-by-step explanation:

4 0
3 years ago
X^2-3x-18 in simplest form
Kay [80]

= x ^{2}  - 3x - 18 \\  =x ^{2}  - (6 - 3)x - 18 \\  = x ^{2}  - 6x + 3x - 18 \\  = x(x - 6) + 3(x - 6)  \\ = (x - 6)(x + 3)

4 0
3 years ago
Ed is on a road trip. He has already traveled 208 miles and is driving at a rate of 70 miles per hour. Which equation could be u
Dmitriy789 [7]

The answer would be B. 208x+70=695

6 0
3 years ago
Read 2 more answers
X/62+89=92 !!!! plz quick
elena-s [515]

To solve an algebraic equation, we need to get x by itself. We can start to do that by multiplying each side of the equation by 62 (to remove the denominator of x).


x + 89(62) = 92 * 62


Simplify


x = 92 * 62 - 89 * 62


Now we can factor out 62


x = 62 (92 - 89)


Now we can simplify the parenthesis


x = 62 * 3


x = 186

5 0
3 years ago
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