Questions on Algebra: Exponents and operations on exponents answered by real tutors!

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 Question 29142: Write 4 • 4 • 4 • 4 • 4 in exponential form Click here to see answer by Earlsdon(6294)

 Question 30419: Find all pairs of integers x and y such that = 104 Click here to see answer by checkley71(8403)

 Question 30449: I'm not sure if I am posting this in the right area. But I need to: For the indicated functions f and g, find the functions f+g,f-g,fg, and f/g and find their domains. f(x)=3x g(x)=x^2+4 Could you show me how this is done. I did it using word and cannot paste the answer in here and need something to check my work by. Thank you so much! Click here to see answer by longjonsilver(2297)

 Question 30468: First, I'm told that -X can be read as -1*X where the 1 is not written because it is "understood" and when X=9, -x= -1* +9 or -9. It would also follow that if X=-9 then -X=-1*-9 or +9. I'm also told that a negetive number times a negetive number yeilds a positive answer. I know that 6^2=36 so it makes sense that -6^2 would mean -6*-6 or +36. My problem is that when I enter -6^2 into my graphing calculator, I get -36. When I enter it into my scientific calculator I get +36. A teacher explained that I should read -6 like I read -X, as -1*+6^2= -36. Another teacher explained that -6^2 means (-6)*(-6)and that the answer is infact +36. Which teacher and which calculator is right? Click here to see answer by mbarugel(146)
 Question 30468: First, I'm told that -X can be read as -1*X where the 1 is not written because it is "understood" and when X=9, -x= -1* +9 or -9. It would also follow that if X=-9 then -X=-1*-9 or +9. I'm also told that a negetive number times a negetive number yeilds a positive answer. I know that 6^2=36 so it makes sense that -6^2 would mean -6*-6 or +36. My problem is that when I enter -6^2 into my graphing calculator, I get -36. When I enter it into my scientific calculator I get +36. A teacher explained that I should read -6 like I read -X, as -1*+6^2= -36. Another teacher explained that -6^2 means (-6)*(-6)and that the answer is infact +36. Which teacher and which calculator is right? Click here to see answer by sdmmadam@yahoo.com(530)
 Question 30468: First, I'm told that -X can be read as -1*X where the 1 is not written because it is "understood" and when X=9, -x= -1* +9 or -9. It would also follow that if X=-9 then -X=-1*-9 or +9. I'm also told that a negetive number times a negetive number yeilds a positive answer. I know that 6^2=36 so it makes sense that -6^2 would mean -6*-6 or +36. My problem is that when I enter -6^2 into my graphing calculator, I get -36. When I enter it into my scientific calculator I get +36. A teacher explained that I should read -6 like I read -X, as -1*+6^2= -36. Another teacher explained that -6^2 means (-6)*(-6)and that the answer is infact +36. Which teacher and which calculator is right? Click here to see answer by Earlsdon(6294)

 Question 30482: i am getting ready to take my ged test and i need help with fractions. can you give me some sites that will help me out with fractions? Click here to see answer by checkley71(8403)

 Question 30556: i have a work sheet on fractions and exponents but how do you do it?.......you here.. Click here to see answer by Nate(3500)

 Question 29350: EXPONENT AND MULTIPLYING: 2^2*2^3? G^2*H^2*h^4&H ? 4R6S*7R^3S^5 ? -(2^2) 5 ? (V^3)8 ? Click here to see answer by Nate(3500)

 Question 30825: i tried to get this problem i couldn't figure it out it is 3over8times5over6 i do not know how to multiply fractions can u please help as soon as possible it is on my homework and i need to turn it in tomorrow Thank you very much Click here to see answer by Nate(3500)

 Question 30832: i do not know how to do this problem it is 4and 1half times 1 and 2 thirds this is really important to me it is my homework which i have to turn in tomorrow please write back as soon as possible thank you Click here to see answer by Nate(3500)

 Question 30836: how do i do 2 fifths of 40 i do not know how to do that and it is on my homework which is dued tommorow so please help me on this it is really important thank you very much Click here to see answer by checkley71(8403)

 Question 30830: i need help on this promblem it is 6 and 1half subtract by 1and 9 thenths it is really important it is my homework and i have to turn it in by tomorrow thank you for your time Click here to see answer by checkley71(8403)

 Question 30902: what do you do with a negative exponent: example Click here to see answer by longjonsilver(2297)

 Question 30927: I need help with fractional exponents in fractions to a power. Click here to see answer by longjonsilver(2297)

 Question 30961: i tried so hard to find the answer for this problem but i couldn't do it is . Find the mean of the first 10 counting numbers (1 through 10) thank you very much Click here to see answer by imadewfoos(2)

 Question 30974: find the mean of the squares of the first ten counting numbers. i really need help on it. it is on my homework and it is dued tomorrow so please write back as soon as possible thank you very much for your time Click here to see answer by longjonsilver(2297)

 Question 31118: (3x<3>)(-2x)<4> ________________ 24x<5> the numbers in the <> are exponents and it is top divided by bottom Click here to see answer by longjonsilver(2297)

 Question 31212: i do not know how to do this problem and it is on my homework which i have to turn in tomorrow so can u help me as soon as possible the problem is: find the mode or modes of 31, 27, 15, 31, 24, 13, 30, 24, 18, 35, 28, 24, thank you very much if u can help me Click here to see answer by Earlsdon(6294)

 Question 31197: i tried so hard to get this problem but i can't it is: find the median for 110, 115, 109, 110, 116, 113, 112, 116, 110, 106,113 i do not know how to find the median thank you for your help Click here to see answer by Earlsdon(6294)

 Question 31207: What is 6^-2 times 6^3 What is 10^2 times 10^3 Click here to see answer by blubunny01(20)

 Question 31296: what is 2 to the power of 0 Click here to see answer by longjonsilver(2297)

 Question 31259: Ok. I need help. This is the question. Find all possible values for x and y to make 154. You must add another number to the equation. For example, X=7 Y=7 10x+y+10y+x=154 or 77+77=154. I really need help on this one...and soon. Thanks for your time, Sincerly, Shizuna. Click here to see answer by checkley71(8403)

 Question 31307: I need to know if i did this right..if i didnt show me how. (4a^2)(-6ab)(2a)= a^4b Click here to see answer by checkley71(8403)

 Question 31120: x<7>y<-4> ________ -2x<-2> the <> numbers are exponents and the top is divided by the bottom and also *****the whole equation has a large bracet around it with an exponent of -3 around it. Click here to see answer by brianunlv(12)

 Question 31123: (4x-5)<3> the number in the <> are exponents Click here to see answer by brianunlv(12)