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2 years ago

What is the sum of 2 + 3i and −1+7i A 1 + 10i B 3−4i C 5 + 6i D 9 + 2i

Mathematics

2 answers:

poizon [28]2 years ago

6 0

A is the correct answer

2 + 3i + (-1) + 7i
1 + 10i

Angelina_Jolie [31]2 years ago

3 0

The correct answer is A, have a good day!

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The distance between A and B = |B - A|

We have -12 and -1.

Substitute:

|-1 - (-12)| = |-1 + 12| = |11| = 11

<h3>Answer: 11 units.</h3>

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I can’t figure out the solution I think it is y < -10

Olenka [21]

Hey there!

<em>With negatives ( $-$ ) you have to switch your symbol to the other way</em>
$\bold{\frac{y}{-2}\leq5}$
Firstly, substitute the $\bold{y\ value }$ as an invisible 1
So, now we have to flip the equation around
$\bold{\frac{-1}{2}y\leq5}$
We have to $\bold{multiply}$ by $\bold{-2}$ on each of your sides
$\bold{-2\times\frac{-1}{2}\leq-2\times5}$
$\bold{Cancel \ out:2\times\frac{-1}{2}y \ because \ it \ equal \ 1}$
$\bold{Keep: -2\times5 \ because \ it \ helps \ us \ find \ our \ answer}$
$\bold{-2\times5=-10}$
$\boxed{\boxed{\bold{Answer:y\geq-10}}}\checkmark$

Good luck on your assignment and enjoy your day!

~ $\frak{LoveYourselfFirst:)}$

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2 years ago

True or false: the Pythagorean theorem can be applied to every triangle

Mnenie [13.5K]

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False

Step-by-step explanation:

The Pythagorean theorem can only be applied to right triangles.

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