 |
|
|
|
|
|
|
|
|
The area of a lot |
2022-12-31 |
|
From Brian:
To calculate lot size, do you use arc length or chord length?
Lot Survey shows:
Length 1 = 120.0'
Length 2 = 120.0'
Width 1 = 61.0'
Width 2 = ARC Length 125.58' / CHORD Length 124.10' / Radius = 236.0'
Answered by Harley. |
|
|
|
|
|
|
A lock combination |
2022-07-19 |
|
From Kendal:
If I tried I could probably (I think) figure the answer but it would take a minute and I hoped maybe as math people there may be a simple formula… I just watched a new movie Black Phone, the kid is given 5 numbers for a combination lock in order but with no indication where the stops are. The numbers (in order) are 23317, my question is how many possibilities with a standard combination lock are there…ie. 2-33-17, 23-3-17, 23-31-7…. As you can imagine not a great movie…my curiosity may get the best of me depending on how your app works ;). Thanks for your time.
Answered by Penny Nom. |
|
|
|
|
|
|
Strings of letters |
2022-04-25 |
|
From Javar:
How many different combinations can I make with A 12 selection list but only
using A&B
Example:
A,B,A,B,A,B,A,B,A,B,A,B
A,B,B,A,A,B,B,A,A,B,B,A
B,B,A,A,B,A,B,A,B,A,A,B
Answered by penny Nom. |
|
|
|
|
|
|
The length of a line at 45 degrees |
2022-04-09 |
|
From Aiden:
Let's say one line is diagonal and one line is vertical.
If they eventually meet at a 45 Degree angle,
How long will the diagonal line be compared to the vertical line?
(For Example: If The Vertical Line is Exactly 1 Inch.
Answered by penny Nom. |
|
|
|
|
|
|
sec(pi/12) |
2022-03-23 |
|
From Diana:
Please help me find the exact value of the following trigonometric expression:
sec(pi/12). Thanks!
Answered by Harley Weston. |
|
|
|
|
|
|
A word problem |
2022-01-29 |
|
From Ric:
Box of oranges weighs 9 pounds. 2/3 of oranges eaten. Box and
remaining oranges weighs 4 pounds. What is weight of box when
empty?
Answered by Penny Nom. |
|
|
|
|
|
|
The next rational number |
2022-01-14 |
|
From Sophia:
what comes after 3 1/2?
Answered by Penny Nom. |
|
|
|
|
|
|
A graph with 100 vertices and one edge |
2022-01-11 |
|
From Maftuna:
A graph has 100 vertices and only one edge. How many connected components does it
have?
Answered by Penny Nom. |
|
|
|
|
|
|
A Word Problem |
2021-12-17 |
|
From Bryson:
Yolanda, Brian, and Charlie have a total of in their wallets. Brian has less than
Yolanda.
Charlie has times what Brian has. How much do they have in their wallets?
Answered by Penny Nom. |
|
|
|
|
|
|
The height of a right triangle |
2021-12-15 |
|
From Slash:
hi how can i find the height of a triangle from the hypotenuse and base. please
go into some details with some steps because it is hard to understand. thanks
Answered by Penny Nom. |
|
|
|
|
|
|
Simplifying a complex expression |
2021-12-15 |
|
From Grace:
Write in the form. a+bi,
-6-7i+8i^2+4i3-5i^4
Answered by Penny Nom. |
|
|
|
|
|
|
Roll of film |
2021-11-20 |
|
From Brian:
Trying to create a formula to calculate the build up on a roll of film is calculated. Except instead of of a roll, it's essentially a rectangle with two semicircles on each at the end.
Example: I start with a 6" diameter core on each side, and I start winding .005"
thick film on the core. The distance between the center of those cores, length of the inner rectangle is 7.125.
If I continue to do this for a total length of film of 3000 feet, what will the
roll length and width be.
So what I need is the formula to perform this type of calculation.
Can you help me? I want to be able to plug the formula in a spread sheet and to be able to input a core diameter, a film thickness and a total length and the length between the center of the two cores(which is the inner rectangle's length I'm assuming).
Thanks
Answered by Harley Weston. |
|
|
|
|
|
|
The sides of a 5-pointed star inscribed in a circle |
2021-09-18 |
|
From Scott:
Is there a calculation for the length of each side of a five-pointed star?
I am not worried about area but if I have a circle with a 7.5 foot radius and
place a star inside it, how can I measure the lines creating the star?
Answered by Harley Weston. |
|
|
|
|
|
|
The dimensions of a rectangle |
2021-09-09 |
|
From Ash:
I need to know how to figure out the dimensions of a rectangle. I know that the
area is 30ft and the perimeter is 26ft. I'm 15 and I have no idea what I'm
supposed to do.
Answered by Harley Weston. |
|
|
|
|
|
|
30 % off |
2021-09-07 |
|
From Corrine:
When I am shopping for clothing that is for sale, the advertisement may say the item is 30% off. The original price was $70. How much would it now be? (how do I figure that out?) Thank you!
Answered by Penny Nom. |
|
|
