3 years ago

They really make you pay for tutoring now??!!

Mathematics

1 answer:

Pepsi [2]3 years ago

3 0

Answer:

yep :(

Step-by-step explanation:

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Find the conjugate and product of<br><br>2-i5

WITCHER [35]

Answer: $2+i5,\ 29$

Step-by-step explanation:

Given

Complex number is $2-i5$

Its conjugate is obtained by changing the sign of the original number i.e. $2+i5$

The product of the two numbers is

$\Rightarrow (2-i5)(2+i5)=2^2-(5i)^2\quad \quad [(x+y)(x-y)=x^2-y^2]\\\\\Rightarrow (2-i5)(2+i5)=4-25i^2\\\\\Rightarrow (2-i5)(2+i5)=4+25=29$

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Pretty sure it’s 78

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Sara can type 90 words in 4 minutes.About how many words would you expect her to type in 10 minutes?

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90 words in 4 minutes is the same as 45 words in 2 minutes because you divide both sides by 2. 2 goes into 10, 5 times, so 45x5=225.
You can expect her to type 225 words in 10 minutes.

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The sum of 5.5 and twice a number is -10

elena-s [515]

The answer is n= 7.75.

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What is the domain of the set of ordered pairs?<br> (8, -13); ( 0,-5); (4, -9); (-3,2)

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The domain is the input values, which are the x values.

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The domain set is (-3, 0, 4, 8)

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