MATHEMATICS MIDDLE SCHOOL

Write (1/3i)-(-6+2/3i) as a complex number in standard form

Answers

Answer 1

Answer:

Answer:

$6+(i)/(3)$

Step-by-step explanation:

$(1)/(3\imath)-(-6+(2)/(3\imath))$

$(1)/(3\imath)+6-(2)/(3\imath)$

taking like terms together

$(1)/(3\imath)-(2)/(3\imath)+6$

taking LCM

$(1-2)/(3\imath)+6$

$(-1)/(3\imath)+6$

taking LCM

$(-1+18\imath)/(3\imath)$

splitting the term

$(-1+18\imath)/(3\imath)$

splitting the term

$-(1)/(3\imath)+(18\imath)/(3\imath)$

$-(1*3\imath)/(3\imath * \imath)+6$

$-(i)/(3\imath^2)+6$

we know that

$\imath^2=-1$

putting this value in above equation

$(\imath)/(3)+6$

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Answers

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What is the mean of this set of numbers? 82 , 79 , 72 , 72 , 81 , 77 , 69 Show your work (Round to the nearest tenth).

Answers

82 + 79 + 72 + 72 + 81 + 77 + 69= 532
532/7 = 76
The mean is 76

Answer:

76≅80

Step-by-step explanation:

Plz help i'm stuck !!!!!!!!!

Answers

first, you should add -1 on both sides of the equation so yu will have:
9 - 1 ≤ c so 8 ≤ c
now if you wanna show it in the graph you should put a dark dot on 8 and graph a line up to the 8 so your graph is the second one (under the pic) :))
I hope this is helpful
have a nice day

i think its the filled circle pointing this way --->

Fifteen is added to the product of a number and 6. the result is 9. find the number.

Answers

equation: 9= 15+(x•6)

answer: x= -1

A Pair of basketball shoes was originally priced at $80 but was Marked 37.5% what was the retail price of the shoe

Answers

The retail price of the basketball shoe is $110 because 37.5% of $80 is $30. So, you add $80 to $30 and you get $110.

A real Estate agent earn 6% of the selling price of each house he says if he sells a home for $250,000 how much of a commission will he make

Answers

Answer:

He makes $15,000

Step-by-step explanation:

250,000*0.06 or 6%= 15,000

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