MATHEMATICS MIDDLE SCHOOL

What is the complex number V-36 + 10?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Answer:

= 5.099 i

Step-by-step explanation:

The problem tells us to find the square root of -36 +10

√(-36 + 10)

= √(-26)

Which is an imaginary number

Lets remember that, √(-1) = i

= i*√(26)

= 5.099 i

Please see attached images for more information

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What is the volume of a cone that has a height of 7 mm and a radius of 3 mm? Use 3.14 to approximate pi and round the answer to two decimal places if necessary.___mm3

Answers

volume=1/3 times area of base (circle) times height

circle=3.14 times radius^2
circle=3^2 times 3.14
circle=9 times 3.14=28.26
times height (7)
197.82
times 1/3=65.94
answer is 65.94 mm^3

A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 11 over 20. The probability of the arrow landing on a section colored blue is 6 over 20. What is the probability of the arrow landing on a green-colored section? 6 over 20 3 over 20 9 over 20 17 over 20

Answers

We have 3 sections.

$\sf~Red=(11)/(20)$

$\sf~Blue=(6)/(20)$

So the entire spinner is divided into $\sf20$ sections.

Since we only have 3 sections(red, blue, green) we can add red and blue, and subtract 1 or 20/20.

$\sf(11)/(20)+(6)/(20)\rightarrow(11+6)/(20)\rightarrow(17)/(20)$

Subtract:

$\sf(20)/(20)-(17)/(20)=\boxed{\sf(3)/(20)}$

So the probability that the arrow landing on a green-colored section is $\sf(3)/(20)$ .

Answer:

3 over 20

Step-by-step explanation:

Need help what’s the correct answer for this question?

Answers

Answer:

Step-by-step explanation:

A scale factor of 4/5 means that each side length or distance is multiplied by 4/5. 10*4/5=8. Hope this helps!

how long would it take me to earn $139.50 of interest at a 6% interest rate if I started with $930.00

Answers

It would be I=PRT 139.50=(930)(0.06)T And then I believe you would multiply then divide and get 2.5 years

Use the distributive property to write 23y-(7x-2y)+x without parentheses.

Answers

Easy,

23y-(7x-2y)+x

There is an imaginary 1 in front of the parentheses, making it,

23y-1(7x-2y)+x

Now, distribute the 1.

-1*7x= -7x
and
-1*-2y= 2y

Leaving your problem looking like...

23y-7x+2y+x

Combine your apples and oranges.....

25y-6x

Thus, your answer.

Help me please!!! Will mark the Brainliest!

Answers

Answer:

Step-by-step explanation:

So, the perimeter of both of the rectangle not crossing is 68, and if the width is 5 and there is 4 sides hovered(perimeter "gone"), you should subtract 20 from 68.

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