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Sphinxa [80]
3 years ago
8

How do you find the square root of a number?

Mathematics
2 answers:
ollegr [7]3 years ago
8 0
Most likely a calculator is your best bet for odd numbers.
There are many common squares and many common square roots, such as :
1 squared =1
2 squared =4
3 squared = 9
4 squared =16
5 squared = 25
6 squared = 36 and so on...
same with square roots
root 25 is equal to 5
root 16 is equal to 4
root 9 is equal to 3
root 4 is equal to 2
and so on however not every number works out that way so a calculator is often your best bet to find the exact value
kkurt [141]3 years ago
3 0
Just multiply by itself
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dybincka [34]
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75, simple enough. Now we know that half of 150 is 75.
Start by writing your problem like this: 150= 75w+37.5b
That equation is all I can think of, because 37.5 is half of 75, which means that's roughly the number you're looking for. Sorry if this doesn't help much<span />
8 0
3 years ago
In a normal distribution, which is greater, the mean or the median? Explain.
lianna [129]
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8 0
4 years ago
what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
3 years ago
If x/3 = -15 then x = -45
vitfil [10]
Yes, but what is the question
6 0
3 years ago
What is the volume of the figure below, in cubic centimeters?<br><br> 756<br> 936<br> 1008<br> 1080
irina1246 [14]
936 I think is the best answer
8 0
3 years ago
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