Noori

45 Questions
59 Answers

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755

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Help would be appreciated :)

a rock is dropped from a height of 100 feet. Calculate the time between when the rock was dropped and when it landed. if we choose down as positive and ignore air friction, the function is h(t)= 36t^2-64

Noori Mar 3, 2021

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608

1

+218

Let a and b be positive two-digit integers with a

Let aa and bb be positive two-digit integers with a

Noori Oct 15, 2020

+1

919

1

+218

How many planes pass through three or more vertices of a regular octahedron?

How many planes pass through three or more vertices of a regular octahedron?

Noori Oct 15, 2020

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581

1

+218

Help!

https://web2.0calc.com/questions/hello-thx-for-any-help

Noori Oct 11, 2020

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522

0

+218

Please help!

https://web2.0calc.com/questions/hello-thx-for-any-help

Noori Oct 11, 2020

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664

1

+218

https://web2.0calc.com/questions/hello-thx-for-any-help

https://web2.0calc.com/questions/hello-thx-for-any-help

Noori Oct 11, 2020

0

1418

5

+218

Hello, thx for any help!

Let R be the circle centered at (0,0) with radius 10. The lines x=6 and y=5 divide R into four regions R1, R2, R3 , and R4. Let R_i denote the area of region R_i If R1>R2>R3>R4,
then find R1-R2-R3+R4 read more ..

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Noori Oct 11, 2020

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1521

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+218

Help!

In triangle ABC, AB = AC, and angle A is equal to 36 degrees. Point D is on AC so that BD bisects angle ABC.
(a) Prove that BC = BD = AD.
(b) Let x = BC and let y = CD. Using similar triangles BCD and ABC, read more ..

Noori Oct 8, 2020

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1616

4

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I honestly just need help proving these:

In triangle ABC, AB = AC, and angle A is equal to 36 degrees. Point D is on AC so that BD bisects angle ABC.
(a) Prove that BC = BD = AD.
(b) Let x = BC and let y = CD. Using similar triangles BCD and ABC, read more ..

Noori Oct 8, 2020

-1

1475

2

+218

Chords UV, WX, and YZ of a circle are parallel. The distance between chords UV and WX is 4, and the distance between chords

Chords UV, WX, and YZ of a circle are parallel. The distance between chords UV and WX is 4, and the distance between chords WX and YZ is also 4. If UV = 78= and YZ = 50, then find WX.

Thank read more ..

Noori Oct 4, 2020

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1764

2

+218

Two circles with radius 1 are externally tangent at B, and have AB and BC as diameters. A tangent to the circle with diameter BC passes

Two circles with radius 1 are externally tangent at B, and have AB and BC as diameters. A tangent to the circle with diameter BC passes through A, and a tangent to the circle with diameter AB passes through C, so that the tangent read more ..

Noori Oct 4, 2020

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1196

4

+218

Find the length AC, to two decimal places. I got 3.21. Why is this wrong? Thank you!

Find the length AC, to two decimal places.
I got 3.21. Why is this wrong? Thank you!

Noori Oct 4, 2020

0

887

2

+218

Chords UV, WX, and YZ of a circle are parallel. The distance between chords UV and WX is 4, and the distance between chords WX and

Chords UV, WX, and YZ of a circle are parallel. The distance between chords UV and WX is 4, and the distance between chords WX and YZ is also 4. If UV = 78 and YZ = 50, then find WX.

Thank read more ..

Noori Oct 4, 2020

-1

654

4

+218

Thank you!

Two circles with radius 1 are externally tangent at B and have AB and BC as diameters. A tangent to the circle with diameter BC passes through A, and a tangent to the circle with diameter AB passes through C so that the tangent read more ..

Noori Oct 4, 2020

+218

0

I believe that this site does not support asymptote, as I have tried to use it in the past. If you try to take a screenshot, or maybe as you said desmos will work.

Hope this helps!

NooriAug 2, 2020

+218

-1

Both answers are incorrect. Thanks for trying to help!

NooriAug 2, 2020

+218

-1

Oops, I mistook it. Sorry! The answer was correct. (for problem #2)

Thanks!

NooriAug 1, 2020

+218

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Ok, thank you!

NooriJul 31, 2020

+218

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So sorry! I didn't realize these problems were already answered...

However, question 2 is a bit different than the link you are referring to, maybe it was a mistake?

Question 4's answer was incorrect. Other than those, your solution, and the one for question 3 were very helpful, thank you so much for those!

Noori

NooriJul 31, 2020

+218

0

Look at this video: https://www.youtube.com/watch?v=InJpE78reTs

NooriJun 29, 2020