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3 years ago

15

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 answer:

Olenka [21]3 years ago

6 0

Answer:

50%

Step-by-step explanation:

The distance between each dot is 25%

From 68 to 70 is 25% and 70 to 74is 25%

Above 68 is 25+25 or 50 %

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WILL MARK BRAINLIEST! WORTH 20 POINTS PLZ HELP ME OUT!

dybincka [34]

Answer:

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Step-by-step explanation:

Since the x is the small pot(5) it would come first when writing it out. And 12 is the large pot(y)

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2 years ago

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

Is AB tangent to circle C?

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Answer:

The line AB is a tangent of the circle with center C.

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2 years ago

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Answer:

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Step-by-step explanation:

get -3 to the other side of the equation. 2a=-2 so a is -1

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3 years ago

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3 years ago

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