3 years ago

How to solve using quadratic formula and imaginary numbers

Mathematics

1 answer:

NeX [460]3 years ago

6 0

The answer is k=4 or k=-7

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tia_tia [17]

Answer:

Step-by-step explanation:

-3x+15=18

-3(-1)+15=18

3+15=18

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3 years ago

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Each marble bag sold by Keisha's marble company contains 7 blue marbles for every 4 green marbles. If a bag has 36 green marbles

MissTica

Answer:

252 blue marbles

Step-by-step explanation:

7x36=252 blue marbles

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3 years ago

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elixir [45]

What is it what you need help on? understanding it?

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3 years ago

Find the power of 1.4 product is 3. 1.64 2.744 4.2 1.96

Natasha2012 [34]

Answer:

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3 years ago

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What is the midpoint between -2-3i and 3+9i

Svetlanka [38]

Answer:

1/2 + 3i is the midpoint between -2-3i and 3+9i.

Step-by-step explanation:

Given the complex number

-2-3i

3+9i

The formula to find the midpoint of two complex number (a + bi) and (c + di) is:

$M=\frac{\left(a+c\right)}{2}+\frac{\left(b+d\right)i}{2}$

$M=\frac{\left(-2+3\right)}{2}+\frac{\left(-3+\left(9\right)\right)i}{2}$

$M=\frac{-2+3+\left(-3+9\right)i}{2}$

$M=\frac{1+6i}{2}$

$M=\frac{1}{2}+3i$

Therefore, 1/2 + 3i is the midpoint between -2-3i and 3+9i.

3 0

3 years ago