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2 years ago

Nonpermissable replacement for a 4/9a?

1 answer:

8 0

If a=0, then the denominator is equal to 0. Since you cannot divide by zero, you are not allowed to do this.
Hope This helps!

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What is the square root of 5x^2 = 300

vesna_86 [32]

So, values of x are: $x=2\sqrt{15},\,\,x=-2\sqrt{15}$

Step-by-step explanation:

We need to find the square root of 5x^2 = 300

Writing in mathematical form:

$5x^2=300$

Divide both sides by 5

$\frac{5x^2}{5}=\frac{300}{5}$

$x^2=60$

Taking square root on both sides

$\sqrt{x^2}=\sqrt{60}$

$x=\pm (\sqrt{2\times 2\times 3\times 5})$

$x=\pm (\sqrt{2^2 \times 3\times 5})$

$x=\pm (2\sqrt{3\times 5})$

$x=\pm (2\sqrt{15})$

$x=2\sqrt{15},\,\,x=-2\sqrt{15}$

So, values of x are: $x=2\sqrt{15},\,\,x=-2\sqrt{15}$

Keywords: Square root

Learn more about square root at:

#learnwithBrainly

7 0

3 years ago

Help please...I'll do anything...

Sveta_85 [38]

Answer:

Step-by-step explanation:

Here is a formula that can help:

4 0

2 years ago

PLZ HELP ITS URGENT!!! Which of the following represents the value of the series below? Also maybe if possible, could you please

arlik [135]

Answer:

first one

Step-by-step explanation:

the sum of (9k-4) =3542

so it will be the first one because

28((5+248)/2)=3542

5 0

2 years ago

Read 2 more answers

How many terms are in the expression 5a+1? 1 4 3 2

Studentka2010 [4]

Answer:

I think the answer is 2

Step-by-step explanation:

7 0

2 years ago

What is -145 Natural Number, Real number, and ect.

loris [4]

It is a real number.

A real number is a combination of rational (usually negative) and irrational numbers.

A natural number is a positive integer.

But since -145 is a negative number it can't be a natural number. Making it a real number.

Correct me if I'm wrong.

6 0

3 years ago