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Crazy boy [7]
3 years ago
12

How many ways can two marbles be chosen from a set of five marbles? 5 10 15 20

Mathematics
2 answers:
zmey [24]3 years ago
7 0

Answer:

20

Step-by-step explanation:

PtichkaEL [24]3 years ago
6 0

Answer:

The answer is 20.

Step-by-step explanation:

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Find the excluded value of the function Y= - 10/6x-5. The excluded value is x =??
Masteriza [31]

Answer:

The excluded value is x = 5/6

Step-by-step explanation:

Here, we want to calculate the excluded value

The excluded value is simply the value of x that will make the denominator of the fraction equals zero

We have this as;

6x -5 = 0

6x = 5

x = 5/6

8 0
3 years ago
F(x)=1/2×+6 plz helpppppppppp​
FromTheMoon [43]

Answer:

The solution set can be given as:

\{x|x\ \epsilon\ R,x\neq -3\}

Step-by-step explanation:

Given function:

f(x)=\frac{1}{2x+6}

To find the domain of the function in set notation.

Solution:

For the function f(x) to exist the denominator must be ≠ 0

We have the denominator (2x+6) which  cannot be = 0.

Thus, we can find the domain of the function using the above relation.

The function f(x) will not exist when:

2x+6=0

Solving for x

Subtracting both sides by 6.

2x+6-6=0-6

2x=-6

Dividing both sides by 2.

\frac{2x}{2}=\frac{-6}{2}

∴ x=-3

Thus, the function will not exist at x=-3. This means it has all real number solutions except -3.

The solution set can be given as:

\{x|x\ \epsilon\ R,x\neq -3\}

3 0
3 years ago
Emily wants to make a rectangular model with a height of one cube
Thepotemich [5.8K]

Answer:

Three cubes


Step-by-step explanation:


The cubes have to be indistinguishable and all orientations of one cube are also have to be indistinguishable.


All ways of connecting two cubes result in the same shape. So answer is larger than two.


After connecting two cubes, there are ten faces where the third cube can be attached, and two faces which are connected, accounting for all 12 faces of two cubes.


Of the 10 exposed faces, exactly two are on opposite ends, both leading to the same straight line figure. The other 8 faces all lead to an L shape, and all L shapes can be rotated to be identical.


Hence, three cubes can only make a straight shape or an angled shape.


Four cubes can make a straight shape, a L shape, a Γ shape (but flipping it over through 3 dimensions makes L and Γ identical), a T shape, and a square shape. That is either four or five different objects depending on if they can be lifted from the table. Anyway, it is more than two.

4 0
3 years ago
PLEASEEEEEE AWNSER I NEED HELP! (AWNSER in scientific notation) 24-27
N76 [4]

Answer:

24 - 27 = -3

<em>and if you meant 2/4 - 2/7 in scientic notation:</em>

<em />

<em>2/4 - 2/7 = 3/14</em>

HOPE THIS HELPS

5 0
2 years ago
Help !! ASAP PLSS !!!
nlexa [21]

Answer:

the 3rd one x+2=5

Step-by-step explanation:

Why?

because you are going from small # to a bigger # so you know you are adding

there is 2 there and it says that it = 5

7 0
2 years ago
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