2 years ago

Fifth root of thirteen

Mathematics

1 answer:

oee [108]2 years ago

3 0

Answer:

1.67027765233

this is the answer mate

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a few years ago, melky bought 100 shares of a cologne company's stock for $16.77 per share. Last month she sold all of the share

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Simplify the expression to a + bi'form:<br> (1 - 5i)(5 +6i)

lions [1.4K]

$(1 - 5i)(5 + 6i) \\ = 5 + 6i - 25i - 30 {i}^{2} \\ = 5 - 19i + 30 \\ = 35 - 19i$

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How would I solve this?

zvonat [6]

Use Pythagorean Theorem which states that in a right triangle:

$a^2+b^2=c^2$ , where a and b are the legs, and c is the hypotenuse.

$24^2+10^2=x^2$

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3 years ago

Solve equation, check for extraneous solutions

fiasKO [112]

Start with

$1=\dfrac{1}{n^2}+\dfrac{n^2-4n-5}{3n^2}$

We observe that both fractions are not defined if $n=0$ . So, we will assume $n \neq 0$ .

We multiply both numerator and denominator of the first fraction by 3 and we sum the two fractions:

$1=\dfrac{3}{3n^2}+\dfrac{n^2-4n-5}{3n^2} = \dfrac{n^2-4n-2}{3n^2}$

We multiply both sides by $3n^2$ :

$n^2-4n-2=3n^2$

We move everything to one side and solve the quadratic equation:

$2n^2+4n+2=0 \iff 2(n^2+2n+1)=0 \iff 2(n+1)^2=0 \iff n+1=0 \iff n=-1$

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which is true

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3 years ago

Write a mathematical expression for: the sum of twice a number n and 20.

faust18 [17]

I belive is B hope that helped

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Fifth root of thirteen​

Fifth root of thirteen