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anygoal [31]
3 years ago
7

3.2n as a algebraic expression

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0

Answer:

I believe it's 3.2*n

Step-by-step explanation:

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BRAINIEST IF ANSWERED CORRECTLY
adoni [48]

An example of something that doesn't have a solution is something like x+2 = x+3

If we subtract x from both sides, then we end up with 2 = 3, which is always false.

No matter what we plug in for x, the original equation will always be false. The right hand side is always 1 larger than the left side. So that's why we don't have any solutions here.

Side note: equations of this form are known as contradictions (or we could say the equation is inconsistent).

=====================================================

An example of something that has one solution is 3x+2 = 2x+7

Solving this equation leads us to...

3x+2 = 2x+7

3x-2x = 7-2

1x = 5

x = 5

To verify the solution, we plug it back into the original equation

3x+2 = 2x+7

3(5)+2 = 2(5)+7

15+2 = 10+7

17 = 17

We get the same thing on both sides, so we get a true statement. This confirms that x = 5 is the solution to 3x+2 = 2x+7.

=====================================================

An example of an equation with infinitely many solutions is 2x+4 = 2(x+2)

Notice how both sides are the same thing. The 2(x+2) distributes out to get 2x+4

Since we have the exact same identical expression on both sides, this ultimately means no matter what we plug in for x, we'll get a true statement. True statements (like the conclusion at the last section) are simply anything with the same number on both sides after simplifying everything.

Side note: equations of this form are known as identities

5 0
3 years ago
A menu has three meat choices,
wolverine [178]

Answer:

18 ways

Step-by-step explanation:

Number of Meat choices = 3

Number of Vegetable choices = 3

Number of Desserts = 2

Number of ways dinner can be chosen :

Number of meat choices * Number of vegetable choices * number of desserts

3 * 3 * 2

= 18

Hence, dinner can be chosen in 18 different choices.

4 0
2 years ago
What does U mean in geometry
Nata [24]

Answer:

So the union of sets A and B is the set of elements in A, or B, or both. The symbol is a special "U" like this: ∪ Example: Soccer = {alex, hunter, casey, drew}

Step-by-step explanation:

3 0
3 years ago
A market sold two packages of sliced beef weighing 1 and one seventh and 4 and one half lb. What was the total weight of the bee
Pepsi [2]

Answer:

5 and 9/14

Step-by-step explanation:

convert the numbers into improper fractions

8/7 + 9/2

=

(8 × 2) + (9 × 7)

7 × 2

=

79/14   or 5 and 9/14


7 0
3 years ago
Read 2 more answers
What are the factors of the polynomial a^2 + a - 2? Select all that apply.
forsale [732]

Answer:

<h2>A) a - 1 and B) a + 2</h2>

Step-by-step explanation:

a^2+a-2=a^2+2a-a-2=a(a+2)-1(a+2)=(a+2)(a-1)

5 0
3 years ago
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