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Vsevolod [243]
3 years ago
12

Please Help Can someone explain where the 4i to the square root of 3 came from?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

note that \sqrt{-1} = i

\sqrt{64-112}

= \sqrt{-48}

= \sqrt{16(3)(-1)}

= \sqrt{16} × \sqrt{3} × \sqrt{-1}

= 4 × \sqrt{3} × i

= 4i\sqrt{3}

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What is the sum of a common geometric series if the first term is 8 and the common ratio is 1/2?
stealth61 [152]

Answer:  A

Step-by-step explanation:

The sum to infinity of a geometric series is

S (∞ ) = \frac{a}{1-r} ( - 1 < r < 1 )

where a is the first term 8 and r is the common ratio, hence

S(∞ ) = {8}{1-\{1}{2} } = {8}{1}{2} } = 16

6 0
3 years ago
Just looking for a boy bsf (less than 14) also im friking bored :|
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Answer:

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Step-by-step explanation:

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3 years ago
A formula for a function y=f(x) is f(x)=x^2-10x,xless than or equal 5. Find f^-1(x) and indentify the domain and range of f^-1(x
evablogger [386]
F(x) =x² - 10x,  f⁻¹(x) =?

1st find the missing square of x²-10x, ==> (x-5)² - 25

y= (x-5)² - 25; replace x by y and v0ce versa: x= (y-5)² -25
or
(y-5)² = x+25
y-5 = √(x+25) and y = √(x+25) -5

Domain = {x∈R: X>= 25} AND Range ={y∈R: y>= 5}

6 0
3 years ago
Please please please help me
Leviafan [203]
The correct answer is 17 what i did was plug in 17 where ever you see x so x2 would be 17x2 an then plus the 5 gives u 39 3x 17x3=51 51+10=61 now add the totals 61 plus 39 gives u 100
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3 years ago
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DochEvi [55]

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