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Answers by Roger B.

its a maths question but is if you add 23 + 332 what ist the answer? (answer)

Hi Starina, I don't want to answer the question for you since you should be able to do this.  But let me give you a useful way to think about it.  332 is 3 hundreds plus 3 tens plus 2 ones.  23 is 2 tens plus 3 ones.  If I told you that I had 4 apples and 5 oranges in...

Distributive property: (2y^2 + 3y - 1)(y^2 + 4y + 5) (answer)

Hi Maralyn, Students often find this kind of problem hard because they have learned the FOIL (First, Outer, Inner, Last) method for simplifying problems like (x + 2)(x - 5) and don't know how to extend the FOIL method to problems like this one that have more than two terms in one or both...

how do I expand this expression log to base 2 x^4 sqrt y/z^3 (answer)

Hi Valerie, It would be helpful if you could repost with parentheses to show clearly how the various parts were grouped.  For instance, were you actually given log2(x4 * sqrt(y) / z3)?  Assuming that is the case, you would want to convert the expression inside the log so that all...

50.1 x 10to the power of 3 (answer)

If written exactly as shown, then no.  But 50.1 x 103 would be correct scientific notation and that is probably what you were really asking about.   In normalized scientific notation, the first number is selected to have an absolute value between 1 and 10.  So, to write this...