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3 years ago

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What is math seminar?

1 answer:

Bad White [126]3 years ago

4 0

Answer:

Math seminar is a course probably for freshman. They will work in a group to discuss several math problems.

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Which estimator will consistently have a skewed sampling distribution?

Rasek [7]

A. Coefficient of Variation

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3 years ago

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11 POINTS PLZ HELP EMERGENCY

Bad White [126]

Part A

The given expression is:

$(-5(1+2i)+3i(3-4i)$

We expand to get:

$-5-10i+9i-12i^2$

Note that $i^2=-1$

$12-5-10i+9i$

$-5-10i+9i+12$

$7-i$

Part Bi)

The given expression is;

$\sqrt{-50}$

We simplify to get:

$\sqrt{25\times 2\times -1}$

$\sqrt{25\times} \sqr{2}\times \sqrt{-1}$

Note that:

$\sqrt{-1}=i$

$5\sqr{2}i$

This is now of the form $a+bi$ , where $a=0,b=5\sqr{2}$ .

This explains why it is a complex number;

Part bii)

The given expression is :

$\frac{\sqrt{-50} }{\sqrt{5}}$

We simplify to get

$\sqrt{\frac{-50 }{5}}$

$\sqrt{-25}$

$\sqrt{-25}=\sqrt{25}\times \sqrt{-1}$

$\sqrt{-25}=5\times i$

$\sqrt{-25}=5i$

Part C

We want to simplify:

$i^{22}$

We rewrite in terms of $i^2$

$i^{22}=(i^2)^{11}$

$i^{22}=(-1)^{11}$

$i^{22}=-11$

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3 years ago

The Pythagorean theorem is true for all similar triangles.<br> A. True<br> B. False

Afina-wow [57]

False. It only relates to the sides of a right triangle in a simple way, so that if the lengths of any two sides are known, the length of the third side can be found.

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Will give brainliest!!

sladkih [1.3K]

Answer:

Infitite solutions (C)

Step-by-step explanation:

They are the same line.

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3 years ago

How much is 1/4+ 1/6

torisob [31]

5/12! How it helps :)

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