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2 years ago

12

Please helppp I really don't understand this lol

1 answer:

Nataly_w [17]2 years ago

8 0

Answer:

Khan Academy.

Step-by-step explanation:

You can go on khan academy and search up "percentages and numbers." The videos should immediately pop up. there are also lessons if you don't want to risk getting your problem wrong. If you are still confused and do not understand please just comment and I will respond.

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Select all of the categories of numbers which contain the number negative 3

Gennadij [26K]

Answer:

integer

rational number

irrational number

Step-by-step explanation:

*integers are numbers that can be written without fraction components. either negative or positive.....

4 0

1 year ago

PLEASE HELP RIGHT AWAY

Ad libitum [116K]

Answer:

I'm pretty sure It's 2172.20 (I may be wrong It's been a while since I did this)

Step-by-step explanation:

7 0

3 years ago

Find the modulus of the complex number 6-2i

Papessa [141]

Answer:

The modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

Step-by-step explanation:

Given the number

$6-2i$

We know that

$z = x + iy$

where x and y are real and $\sqrt{-1}=i$

The modulus or absolute value of z is:

$|z|\:=\sqrt{x^2+y^2}$

Therefore, the modulus of $6-2i$ will be:

$z=6-2i$

$z=6+(-2)i$

$|z|\:=\sqrt{x^2+y^2}$

$|z|\:=\sqrt{6^2+\left(-2\right)^2}$

$=\sqrt{6^2+2^2}$

$=\sqrt{36+4}$

$=\sqrt{40}$

$=\sqrt{2^2}\sqrt{2\cdot \:5}$

$=2\sqrt{2\cdot \:5}$

$=2\sqrt{10}$

Therefore, the modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

3 0

3 years ago

The area of the rectangle below is<br> sq. units.<br> Help me pls :(

Lisa [10]

Answer:

D

Step-by-step explanation:

Hey There!

To find the area of a rectangle we do length times width

17 is the width and 4 is the length

so area is equal to 17x4

17x4=68 so your answer would be D

8 0

3 years ago

Read 2 more answers

A store pays $10 for a bracelet,and the markup is 115%. A customer will also pay a 5 and 1/2% sales tax.What will be the total c

sweet-ann [11.9K]

31.76 and to the power of 9 is somethinng

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3 years ago