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

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Question 568734: Hi I'm an 8th grade Algebra I student and i don't understand this problem. Please show your work thoroughly. Thanks!!!!
2^n * 2^n+2*2
(The n+2 is all raised, not just the n.)
Thank you once more!!!!!!!!!!!!!!!!!!!!!!
Click here to see answer by stanbon(75887)

Question 568807: (2x2)-4 answer should contain only positive exponents
Click here to see answer by Alan3354(69443)

Question 568828: what is the answer to 2z raised to the -8 power
Click here to see answer by jim_thompson5910(35256)

Question 568422: Let f(x) = 3x. Find f( 3) and f(1/3).
Click here to see answer by jim_thompson5910(35256)

Question 570073: How do I work this problem: 64-6[15+2(-3+8)]? I have tried five times using PEMDAS without success in getting to the answer of -86. Thank you.
Click here to see answer by stanbon(75887)

Question 570176: When rewriting an exponential expression with a negative exponent and a positive base to an expression containing only a positive exponent, does the sign of the base change?
Click here to see answer by stanbon(75887)

Question 572453: Can you explain why the answer to w4/w9 is w5 and not 1/w5? or w-5?
I thought you subtract the exponents 4-9 which would give me -5. In order to express the answer in the positive the answer would be 1/w5 but the answer to my practice test says the answer is w5. Please explain
.
Thank you
Click here to see answer by stanbon(75887)

Question 572528: rewrite with a rational exponent.
3 sqrt 19 = __________ (simply your answer.)
Click here to see answer by Theo(13342)

Question 572531: convert to decimal notion.
8.31 x 10^7= _________ (simplify the answer.)
Click here to see answer by Edwin McCravy(20054)

Question 572646: Can you please answer this easy qustion: If there is a bracket which has EXAMPLE : (x-x)^2 is the brackets equal to (x-x)(x-x) OR (x-x)(x+x)
Click here to see answer by Maths68(1474)

Question 572840: 2x to the negative third
Click here to see answer by solver91311(24713)

Question 572866: you deposit $500 in an account that pay's 5% interest yearly. how much money do you have after 6 years?

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Question 572957: Can someone plz help show me how this is worked. Multiply.
(x + 6)(x - 6)
Click here to see answer by unlockmath(1688)

Question 573124: 2/x-7 = 4/x
Click here to see answer by solver91311(24713)

Question 574536: (e^-t+(1/t))e^t=? pls give me brief solution
Meera
Click here to see answer by josmiceli(19441)

Question 575030: simplify. Assume that no denominator is 0 and that 0^0 is not considered.(a^5)^8
Click here to see answer by richard1234(7193)

Question 575096: Find a value of the variable that shows that the two expressions are not equivalent. (a + 5)2; a2 + 52
Click here to see answer by KMST(5328)

Question 576118: x^2 + 6x=
Click here to see answer by jim_thompson5910(35256)

Question 576116: x^2-2x=
Click here to see answer by jim_thompson5910(35256)

Question 576968: simplify (5x^2y)^3
Click here to see answer by unlockmath(1688)

Question 578350: What does 3-� equal?
Click here to see answer by dfrazzetto(283)

Question 578457: Can anyone please help me with this math problem. It is very hard for me to understand.
^3 sqrt (x)-4=2

Click here to see answer by KMST(5328)

Question 578467: I am unable to do this problem. Please help!
raise the quantity in parenthesis to indicated exponent and simplify the resulting expression with positive exponents
[-36x^2y/180x^-3y^-5]^-2

Click here to see answer by mananth(16946)

Question 578810: Please help me do this sum=A to the power of -3 � B to the power of -4
Click here to see answer by dfrazzetto(283)

Question 579356: Hello what is |-7-12|-(-33)-81 My answer is 67 can you show me how I got this math problem wrong? Thanks and have a good day
Click here to see answer by Theo(13342)

Question 579358: This is an application problem. Find the rate of a hiker who walked 4 2/3 mi. In 1 1/3 hr. Use r=d/t Where r is the rate in miles per hour. d is the distance. And t is the time. I could'nt figure this one out. Thanks again or your help.
Click here to see answer by Theo(13342)

Question 579425: please help me solve this problem need to show work, I have worked this 4 times and it is always wrong
Click here to see answer by Alan3354(69443)

Question 580886: the expression (10w cubed) squared over 5w is equivalent to?

Click here to see answer by dfrazzetto(283)

Question 581071: Could someone please help with this problem?
(12x)(3x^2)/8x^5
Click here to see answer by ankor@dixie-net.com(22740)

Question 581121: Could someone please tell me if I am right?
3x^-5/2x^3
Is the answer 3/2x^8
Click here to see answer by bucky(2189)

Question 581044: Simplify expression using positive exponents
D2d6
Click here to see answer by jim_thompson5910(35256)

Question 580813: xy^-4
Click here to see answer by jim_thompson5910(35256)

Question 581933: Does:
5x^2/10x^-5
reduce to
0.5x^5
???

Click here to see answer by stanbon(75887)

Question 581597: Using the exponential correlation, how do I solve for x. Round to three decimal places.
1)log(4x+10)=3
2)1/2 log6 16x +5=8
3)In(x+4)=-2
Click here to see answer by ankor@dixie-net.com(22740)

Question 582199: im so confused!! im in grade 10 foundations math and were working on rational exponents. is the question is to evaluate 16 & 3/4 i change it too the square root of 16 to the power of 3 and then the four goes on the left hand side outside of the square root symbol. i get 64 but then i dont know what to do with the four. do i divide 64 by four? it wasnt expained...
Click here to see answer by ankor@dixie-net.com(22740)

Question 582853: how you solve 10 with exponent 6 divide by 10 with exponent 2
Click here to see answer by mananth(16946)

Question 584572: Could someone please help with this problem? It has been awhile since we have done these and I can't find an example and I'm sure it's probably not as easy as it looks,like its probably not 5x^4?
3x^2 +2x^2
Click here to see answer by dfrazzetto(283)

Question 584751: I cannot remember how to distribute the exponents.
The problem I am working on is
(-2z)^2 (3z^4)^2
Click here to see answer by stanbon(75887)

Question 584751: I cannot remember how to distribute the exponents.
The problem I am working on is
(-2z)^2 (3z^4)^2
Click here to see answer by JBarnum(2146)

Question 584893: Hi I am having a hard time solving 3 questions but I will be sending them to you individually. Evaluate a to the 2nd power b-c to the 2nd power when a=one third,b=5,and c=four fiths
Click here to see answer by JBarnum(2146)

Question 584938: (4.5 * 10 exponent 4) exponent 2
Click here to see answer by rfer(16322)

Question 585400: 1 over -27= (-3) to the blank power. What is the blank power?
Click here to see answer by jim_thompson5910(35256)

Question 586023: i need help on scientific notation! if i have a problem like this: (5 x 10 to the 5th) to the negative 2nd ......how do i solve it?
Click here to see answer by Alan3354(69443)

Question 586023: i need help on scientific notation! if i have a problem like this: (5 x 10 to the 5th) to the negative 2nd ......how do i solve it?
Click here to see answer by josmiceli(19441)

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