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How do you write the expression 5x5x5 in exponential form?
5 x 5 x 5 = 51+1+1 = 53 5 x 52 x 56 = 51+2+6 = 59 (5)3 = 51x3 = 53 (52)4 = 52x4 = 58
Which one is wrong in series 9 21 51 155 540 2163?
197,becoz it the only no which is not divisible by 5......
What is the gcf for 3 and 5?
Both are primes, so their gcf is 1.But..If you're using the stupid SwitchedOn Online Integrated Math course, they say it's 3.I couldn't tell you why, but I put 1, knowing they're both prime (and 1 goes into both), and they said it was wrong.So. Yay for idiot mathing :)The GCF of 3 and 5 is 1. To help you understand this, here are the factors of each.3 51x3 1x51 is the greatest factor that is common out of both of them.
How can you use multiplication to check quotient?
You can use multiplication to check a quotient because, if you think about it, division is like algebra with multiplication.Lets say you have the problem 49/749/7 is 7, right? So you check by taking the answer (7) and the divisor (7) and multiply it to check.Does 7x7=49? Yes, it does!The quotient is right if you multiply the divisor by the quotient and get the dividend.Another example for your benefit:153/3You do the calculations wrong, but you are smart enough to check to find out you did this.Lets say you think that 153/3=13.You check by doing: 13x3.When you are done calculating 13x3, you get 39.BUT you didn't get 39 when dividing.So this proves that 13 IS MOST DEFINITELY NOT the answer.You divide again and get 51.Being the smart person you are, you check that answer.51x3=153By checking, you got it right!
