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KonstantinChe [14]
2 years ago
7

Which number is rational?

Mathematics
2 answers:
ankoles [38]2 years ago
7 0

Answer:

3.1 is a rational number as it can be expressed as 31/10

√2 is an irrational number

√32 is the product of irrational and rational numbers, being equal to 4√2

4.142357... is presumably meant to represent an irrational number, although it could potentially be a rational one depending on what is in the ...

disa [49]2 years ago
4 0

Answer:

I think it's A.

hope this helps

have a good day :)

Step-by-step explanation:

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HLEP ME PLEASE !!!!!!
Advocard [28]

Answer:

f(x) + g(x) = 3x + 7

Step-by-step explanation:

f(x) = 2x + 2, g(x) = x + 5

f(x) + g(x) = 2x + 2 +x + 5

f(x) + g(x) = 2x +x + 5 +2

f(x) + g(x) = 3x + 7

7 0
3 years ago
Which expression is not a perfect square trinomial?
puteri [66]

Answer:

Remember that a perfect square trinomial can be factored into the form (a+b)^2

or (a-b)^2

Examples:

(x+2)(x+2) is a perfect sq trinomial --> x^2+4x+4

(x-3)(x-3) is a perfect sq trinomial --> x^2-6x+9

(x+2)(x-3) is not a perfect square trinomial because its not in the form (a+b)^2 or (a-b)^2

Now to answer your question,

for the first one, x^2-16x-64, you cannot factor it so it is not a perfect square trinomial

for the second one, 4x^2 + 12x + 9, you can factor that into (2x+3)(2x+3) = (2x+3)^2 so this is a perfect square trinomial

for the third one, x^2+20x+100 can be factored into (x+10)(x+10) so this is also a perfect square trinomial

for the fourth one, x^2+4x+16 cannot be factored so this is not a perfect square trinomial

Therefore, your answer is choices 2 and 3

Read more on Brainly.com - brainly.com/question/10522355#readmore

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the area of the shape below. Plz help!!!
skelet666 [1.2K]

Answer:

A = 108 units²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = \frac{1}{2} h (b₁ + b₂ )

where h is the height between the 2 bases and b₁, b₂ are the parallel bases

Here h = 24 , b₁ = 8 , b₂ = 1 , then

A = \frac{1}{2} × 24 × (8 + 1) = 12 × 9 = 108 units²

5 0
2 years ago
you are given the measure of angle 4. You also know the following angles are supplementary: Angles 1 and 2, angles 2 and 3, angl
Harrizon [31]
If you are given the measure of angle 4, then we know angle 2 is equal since it is a vertical angle. The angle of a line is 180 degrees, so subtract the measure of angle 4 (and/or 2) which  will give you the angle measure for both angle 1 and 3, since those are also equal due to vertical angles. Hope that helped! :)
4 0
3 years ago
Please help me with this problem quickly i need to finish imagine math soon
Kazeer [188]

Answer:

first is the second box

second is also second box

thris is third box

Step-by-step explanation:

7 0
2 years ago
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