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IgorLugansk [536]
2 years ago
8

Make a the subject of the formula r = square root a/3

Mathematics
1 answer:
Goshia [24]2 years ago
3 0

Answer:

Assume that the expression is:

r = √(A)/3

Multiply both sides by 3:

3r = √(A)

Finally, square both sides to get:

A = (3r)²

= 9r²

I hope this helps!

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
For the polynomial function ƒ(x) = −x6 + 3x4 + 4x2, find the zeros. Then determine the multiplicity at each zero and state wheth
murzikaleks [220]

There is a multiple zero at 0 (which means that it touches there), and there are single zeros at -2 and 2 (which means that they cross). There is also 2 imaginary zeros at i and -i.


You can find this by factoring. Start by pulling out the greatest common factor, which in this case is -x^2.


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Now we can factor the inside of the parenthesis. You do this by finding factors of the last number that add up to the middle number.


-x^2(x^4 - 3x^2 - 4)

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Now we can use the factors of two perfect squares rule to factor the middle parenthesis.


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-x^2(x - 2)(x + 2)(x^2 + 1)


We would also want to split the term in the front.


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First root

x = 0 ---> no work needed


Second root

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x = 0


Third root

x - 2 = 0

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Forth root

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x = -2


Fifth and Sixth roots

x^2 + 1 = 0

x^2 = -1

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x = +/- i

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