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dolphi86 [110]
2 years ago
6

If b^2=a then b is what of a?

Mathematics
2 answers:
mylen [45]2 years ago
7 0
1:: If
a
is divisible by a square of a prime number, then we cannot conclude from |2
a
|
b
2
that |
a
|
b
.

Any time
a
is divisible by a square of a prime number, =⋅
a
=
k
⋅
p
n
where ≥2
n
≥
2
and
p
does not divide
k
, you can see that
a
divides (⋅−1)2
(
k
⋅
p
n
−
1
)
2
, but
a
does not divide ⋅−1
k
⋅
p
n
−
1
.

Part 2: If
a
is not divisible by a square of a prime number, then we can conclude from |2
a
|
b
2
that |
a
|
b
.

On the other hand, if
a
is not divisible by a square of a prime number, then =12⋯
a
=
p
1
p
2
⋯
p
n
where
p
i
is prime for all
p
. Then, assuming
a
divides 2
b
2
, you can conclude that
p
i
divides 2
b
2
, and therefore
p
i
divides
b
(from prime factorization) for all
i
. From this, you can conclude that
a
divides
b
.
kobusy [5.1K]2 years ago
6 0

Answer:

\huge\boxed{b = \sqrt{a}}

Step-by-step explanation:

If we have an equation b^2 = a and we want to find what b is in relation to a, we can change the equation so that we have b on one side and whatever is on the other side is what b is.

b^2 = a

To isolate b, we can take the square root of both sides as taking the square root of something squared results in the base.

\sqrt{b^2} = \sqrt{a}

b = \sqrt{a}

So b is the square root of a.

Hope this helped!

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Show your working please.​
iren2701 [21]

Offer B is the best value for money because each kg cost is £0.61 and in offer 'A' each kg cost is £0.7.

<h3>What is a fraction?</h3>

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:
2 bags for £35

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Each kg cost = 35/50 = £0.7 per kg

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