







The Polynomial Remainder Theorem 
20190223 

From pasandi: f(x) is a quadratic polynomial. when f(x) is divided by
(x1),(x2) & (x+2) the remainders respectively are 1, 4 and 2 how to find the f(x) in a question like this? Answered by Penny Nom. 





An arithmetic sequence 
20190223 

From Dalal: If x+1 and x+17 are the second and sixth term of a sequence with a common difference of 5, what's the value of x. Answered by Penny Nom. 





Adding and multiplying two numbers 
20190213 

From katie: what 2 numbers add to get 7 and multiply to get 2? Answered by Penny Nom. 





Margin with commission as part of selling price 
20190213 

From Anni: I need to find selling price to put us at 24% margin.
15% commission is based on selling price and is included in our cost.
I'm trying to do it excel and keep getting a circular reference.
Total cost= cost + commission (15% of selling price)
Selling price=total cost + 24% margin Answered by Penny Nom. 





Factoring n^2+3n270 
20190211 

From Ashley: n^2+3n270 Answered by Penny Nom. 





A linear equation 
20190211 

From Nick: What's a linear equation? Answered by Penny Nom. 





5 numbers from 9 numbers 
20190211 

From John: How many combinations of 5 numbers be created with 9 numbers?
Sample: 1,4,7,9,12. Question the same with combination of 4 from 12?
Thanks, John Answered by Penny Nom. 





A cylindrical drum 
20190210 

From Ronald: I have a cylinder that is 32 inches round by 25 inches deep how much water can it hold Answered by Penny Nom. 





The exponential form of sqrt(13) 
20190210 

From isaebl: what is the exponential form of sqrt(13) Answered by Penny Nom. 





Function notation 
20190210 

From Paige: What is the difference between f(x+2) and f(x)+2? Answered by Penny Nom. 





Fractions with roots 
20190206 

From DEBMALYA: 5/√2+√3 –1/√2–√3 Answered by Penny Nom. 





An ice cream cone 
20190205 

From Eyuel: a scoop of ice cream has a 3inch radius how tall should the ice cream cone at the same radius be in order to contain all of the ice creams inside the cone Answered by Penny Nom. 





A 4 digit combination lock 
20190202 

From Brijanshu: I have a lock that contain only four no. 6,7,8 & 9 . How many possible password of four digit containing these Number. Answered by Penny Nom. 





A fraction of a cent 
20190201 

From michael: $ 300 divided by 1,000,000 is 00.0003 ... so, is that three hundredths of one ($ 00.0003) cent or what ... thanks Answered by Penny Nom. 





An arithmetic sequence 
20190131 

From sara: if the 6th term of an arithmetic sequence is 8 and the 11th term is 2, what is the first term? Answered by Penny Nom. 

