tommarvoloriddle

81 Questions
508 Answers

0

3239

1

+1713

Exponential Model Question

After a special medicine is introduced into a petri dish full of bacteria, the number of bacteria remaining in the dish decreases rapidly.
The relationship between the elapsed time t, in seconds, and the number of bacteria, B(t), in the petri dish is mehr ..

tommarvoloriddle 24.06.2020

+2

757

3

+1713

Hello! It's been a while!

Hi guys!

I was doing logic puzzles, and I got stumped on one... Any help?
mehr ..

tommarvoloriddle 16.06.2020

+2

1447

1

+1713

Hi!!! I'm Back~

I was just doing random math problems-like you do, and I stumbled upon this one...

The sum of the first 6 terms of a geometric series is 15,624 and the common ratio is 5. mehr ..

tommarvoloriddle 02.01.2020

+2

900

3

+1713

20 IN A ROW

I was just scrolling by and I saw 20 "HELP" in a row!!!

And some of them were posted one after another!!!
mehr ..

Off-Topic

tommarvoloriddle 09.12.2019

0

1004

2

+1713

Square-mania

In square ABCD, AD is four centimeters, and M is the midpoint of CD. Let O be the intersection of AC and BM. What is the ratio of OC to OA? Express your answer as a common fraction.

Work:
... mehr ..

tommarvoloriddle 07.12.2019

+1

1651

14

+1713

Spheres! Yay?

The surface area of a sphere with the radius r is 4 pi r^2. Including the area of its circular base, what is the total surface area of a hemisphere with the radius 6 cm? Express your answer in terms of pi.

Work/confusion: mehr ..

●●●●●●●●●●●●●●

tommarvoloriddle 07.12.2019

+1

820

5

+1713

GEOMETRY

If all the angles in the figure shown are right angles, what is the perimeter of the figure?

https://ibb.co/YLhzt8x
^^^^^ Picture for the question

Is the answer 10+12+10+12+7+7+6=20+24+14+6 mehr ..

●●●●●

tommarvoloriddle 07.12.2019

0

1031

4

+1713

I've just noticed something

It can't believe it took me this long to figure out.

I just noticed that so many people stop doing anything on Web20Calc even when they try after the summer break.
mehr ..

Off-Topic

tommarvoloriddle 03.12.2019

+2

776

4

+1713

GEOMETRY

Given: BC || DE
Angle D is Congruent to angle B
Prove: AB || CD
mehr ..

tommarvoloriddle 01.12.2019

0

904

7

+1713

I'm Back with some Geo/Theory Questions!

Sorry I left if you noticed.

I was just reeling under homework and stress and stuff.
mehr ..

●●●●●●●

tommarvoloriddle 27.11.2019

0

1065

9

+1713

Just curious-

Just curious, as on AoPS, if you don't know the answer to a problem, they often tell you to come here...

How many of you are from AoPS and want help in courses? mehr ..

Off-Topic

●●●●●●●●●

tommarvoloriddle 17.11.2019

+1713

0

XD

This is a topic which is finally being addressed. Thank you!

tommarvoloriddle28.10.2019

+1713

0

A hint- try using casework!

Divide it into cases of 1 by 1, 1 by 2, 1 by 3, etc...

tommarvoloriddle28.10.2019

+1713

-1

Melody had a smiley face on hers?

Whaaaaa!!!!

tommarvoloriddle27.10.2019

+1713

0

Hi Melody!!!

I've missed you all!

tommarvoloriddle27.10.2019

+1713

0

Are you part of the WebCalc team?

tommarvoloriddle26.10.2019

+1713

0

Never mind now!

tommarvoloriddle26.10.2019

+1713

0

Never mind it is working!!!

Is there a way to go from here?

tommarvoloriddle26.10.2019

+1713

0

Thank you for helping me!

I can't upload it- it says no file selected...

:<

tommarvoloriddle26.10.2019

+1713

0

Okay, so how can I make it accessible to you?

tommarvoloriddle26.10.2019

+1713

0

:)

Thank you so much!

tommarvoloriddle26.10.2019