







The volume under an an uneven surface 
20200501 

Solon pose la question : I am trying to fill an area of floor which has an uneven surface. I need to know the volume of fill.
If you imagine a rectangular room (4 corners) that measures 189 inches by 240 inches and the depth at each corner is different.
Let us say corner #1 has a depth of 1", corner #2 has a depth of 0", corner #3 has a depth of 2" and corner #4 has a depth of 4".
How would i find the volume of said floor area?
Any assistance would be greatly appreciated! Harley Weston lui répond. 





Adding a service charge and the VAT 
20200430 

richard pose la question : was given a figure by a client been performance bonus of staff , the figure is 806,698.35 from this 806,698.35 is my company service charge of 10% and 5% of the service charge will be Vat to government in summary from 806,698.35 is 10% of service charge and 5% of service charge is the VAT Penny Nom lui répond. 





A system of equations. 
20200427 

solomon pose la question : xy + x =28
x + y +4 Penny Nom lui répond. 





Power notation 
20200426 

Aditi pose la question : The power notation of 1 / 128 Penny Nom lui répond. 





The width of a rectangle of land 
20200426 

Teresa pose la question : If a rectangle shape piece of land is 813 feet long. How many feet width would be 2 acres? Penny Nom lui répond. 





How many boxes will fit in a closet? 
20200424 

Jordan pose la question : Janelle has some boxes that are 43cm long, 23cm wide and 18cm tall.
She wants to store them in a closet in her basement that is 2.2m tall, 1.1m
wide, and 0.8m deep. What is the maximum number of boxes that
Janelle can possibly fit in the closet? Penny Nom lui répond. 





Building a house in one year 
20200422 

Fify pose la question : If it takes 8 men to build a house in 450 days. How many men would it take to build the house in 365 days? Is there a specific method to calculate this please? Penny Nom lui répond. 





Four digit numbers starting with 6 
20200422 

Judy pose la question : I need to generate a list of 4 digit numbers using 09 where the first digit is 6 and no numbers can be repeated Penny Nom lui répond. 





An arch in the form of a semiellipse 
20200420 

Anggelica pose la question : an arch in the form of a semiellipse is 8 feet wide at the base and has a height of 4ft. how wide is the arch 1foot above the base? Penny Nom lui répond. 





Gravel for a French Drain 
20200417 

Ray pose la question : Hello,
** I am wanting to add 2 French Drain's in my yard. The 1st drain will be 25 ft. long, 8 in wide and 18 in deep. The pipe I'm using is 4in. in diameter. I'm trying to figure out how many yards of clean gravel I will need for this project?
** The 2nd French Drain will be 100 ft in Length, 10in wide and 18 in deep. I will also be using the 4in in diameter pipe for this drain. I am needing to see how many yards of clean gravel, I'll need for this drain?
Any assistance would be greatly appreciated!! Thank you!! Harley Weston lui répond. 





The missing diameter of a truncated cone 
20200417 

Brandon pose la question : Need a formula to find missing large Dia of a truncated cone where the small dia =.19" Height= 2" and taper =16deg Harley Weston lui répond. 





An isosceles triangle 
20200416 

jo pose la question : Find the angle between the two sides of length 5 in an isosceles triangle that has one side of length 9 and two sides of length 5. Penny Nom lui répond. 





Why is a square a rectangle but a rectangle is not a square? 
20200415 

A parent pose la question : Why is a square a rectangle but a rectangle is not a square? Explain your answer. Penny Nom lui répond. 





Two chords 
20200414 

Frank pose la question : How to find the length of the radius of a circle if you know the lengths of two chords Penny Nom lui répond. 





A hexagon constructed from two triangles 
20200413 

sunny pose la question : Triangles AEC and FDB are equilateral triangles and EA= DF= 12cm. The polygon
at the center of the star is a regular hexagon. What is the area of the hexagon? Penny Nom lui répond. 

