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skad [1K]
3 years ago
6

Pls i need the answer to this question​

Mathematics
1 answer:
steposvetlana [31]3 years ago
6 0

Answer:

x ≤ 0

Step-by-step explanation:

2x² ≤ 0

2x² / 2 ≤ 0 / 2

x² ≤ 0

x²/ x ≤ 0 / x

x ≤ 0

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Find the cardinal number of the given set.<br><br><br> A = {{3, 5, 7, ... 25}}
Allisa [31]

Answer:

<h3>12</h3>

Step-by-step explanation:

The cardinal number of a set is the number of element in the set. Given the set A = {{3, 5, 7, ... 25}}, you can see that the elements of the set are odd numbers from 3 to 25. Writing out the full set;

A = {{3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25}}

Counting the total number of element in the set, you will see that there are only 12 elements in the set. Hence the cardinal number of the set is 12 i.e n(A) = 12

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2 years ago
Balloon A is charged, and balloon C is charged. If balloon A approaches balloon C, there’ll be a force of between them.
ipn [44]

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3 years ago
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iren2701 [21]

Answer:

Could anyone help me with this problem please?

What is one value that makes the fraction (x^2 + 11x +30)/(4x + 44x^2 + 120x) Undefined?

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Step-by-step explanation:

8 0
2 years ago
Which of the following is a quadratic equation that has the roots x = 2 and x = −7? (4 points)
crimeas [40]

Answer:

x^2 + 5x - 14

Step-by-step explanation:

We can assume that if there is 2 options for x, this is a quadratic equation that equals 0.

Therefore, we can put this into brackets as one bracket must equal 0.

(x - 2) (x + 7)

After this we expand, which is a process easier to search up

The answer is:

x^2 + 7x - 2x - 14

We can simplify this to:

x^2 + 5x - 14

x^2 represents x squared in case you were wondering

Therefore, the answer is:

x^2 + 5x - 14

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2 years ago
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3 years ago
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