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

Tutors Answer Your Questions about Exponents (FREE)

Question 389274: Simplify the expression if possible (4xy2)2
and write your answer as a power (using exponents).
Click here to see answer by Fombitz(13828)

Question 389275: Simplify the expression if possible (4xy2)2
and write your answer as a power (using exponents).
Click here to see answer by ewatrrr(10682)

Question 389276: . Evaluate the expression (1/3)-1 and write your answer as
a fraction in simplest form.
Click here to see answer by Fombitz(13828)

Question 389261: You buy a used truck for $10,000. It depreciates at the rate of 18%
each year for 5 years. Find the value of the truck after 5 years.
Click here to see answer by MathLover1(6618)

Question 390040: simplify. answer should contian only positive exponents.
(a^5)^3
Click here to see answer by rfer(12646)

Question 390134: -5y^4(y^5)^2 / 15y^7(y^2)^3
i have worked this already and am not quite satisfied with my answer.. my answer is -1/3y

Please solve for me so i can compare and see what i did wrong if i am wrong.
thank you - gka
Click here to see answer by Earlsdon(6287)

Question 391007: Simplify the expression
[(-14) x 22]^5
The x is for a multiplication sign. My email is Sdelliott3@msn.com
Thank you very much
Click here to see answer by stanbon(57226)

Question 391134: Do you add or multiply in the equation(w^2)^3? I got w^5 and w^6. I tried both and both are a right to my book.
Click here to see answer by haileytucki(390)

Question 391134: Do you add or multiply in the equation(w^2)^3? I got w^5 and w^6. I tried both and both are a right to my book.
Click here to see answer by mananth(12270)

Question 391134: Do you add or multiply in the equation(w^2)^3? I got w^5 and w^6. I tried both and both are a right to my book.
Click here to see answer by solver91311(16868)

Question 392267: plz help me with this express (2\5)^-8

Click here to see answer by Alan3354(30970)

Question 392267: plz help me with this express (2\5)^-8

Click here to see answer by MathLover1(6618)

Question 392740: 0.4 to the fifth power times 0.4 to the tenth power equals
Click here to see answer by rfer(12646)

Question 392963: how doi solve this problem (6m)to the fourth power
Click here to see answer by jim_thompson5910(28476)

Question 393003: how do you simplify (m^6)^2/3
Click here to see answer by stanbon(57226)

Question 392992: Solve (3a^5 b^3 c^2)^2 * (2a^2 b^5 c^4)^3
Click here to see answer by Fombitz(13828)

Question 393060: i am to find the average annual rate of inflation...the cost of box of cereal increased from 4.25 to 5.5 over 5 years. i believe i should be solving using final amount 5.5=initial amount 4.25(1+rate of change) to the nth power or in this case the power of 5. i get 75% and that doesn't make sense.
Click here to see answer by jsmallt9(3296)

Question 393000: Solve the expression: (x^4 y^4)^6 (xy^6)-4 divided by (x^4 y^3)
Click here to see answer by jsmallt9(3296)

Question 392998: The expression: x^2 (1/9x^3) (63x^-11) equals c/x^e where the coefficient c is ___? and the exponent e is ___ ?
Click here to see answer by jsmallt9(3296)

Question 393157: I need help with the following -x-4/5=x+1/2+2/5
Thank you

Click here to see answer by Alan3354(30970)

Question 393566: how can you simplify 12x to 5th power/8x to 7th power
Click here to see answer by rfer(12646)

Question 393903: 5x-6=7(x+6)
Click here to see answer by pie90010(44)

Question 394003: If a vendor charges p dollars each for
rugby shirts, then he expects to sell 2000 - 100p shirts at
a tournament.
a) Find a polynomial R(p) that represents the total revenue
when the shirts are p dollars each.
b) Find R(5), R(10), and R(20).

Click here to see answer by stanbon(57226)

Question 385295: Simplify: (-8)^-4/3
Click here to see answer by jsmallt9(3296)

Question 394215: I think I am doing this problem wrong. If I am can you help me to find the mistake I am making?
simplify (10y^7)^4 (6y^-8)^-3 This is multiplication and what I have so far is
10^4(y^7)^4(1/6)^3(1/y^8)^3 then I got
10000y^11(1/216)(1/y^11)
I feel like that is not right please let me know what I am doing wrong. I have checked the book and I'm not understanding it a whole lot.
Click here to see answer by Alan3354(30970)

Question 394440: What is 4 times 3 over 2 to the negative first power?
Click here to see answer by jim_thompson5910(28476)

Question 394607: I need to find the last two digits from the following numbers : 15^121
Click here to see answer by edjones(7569)

Question 394670: Please help me to understand how to solve the equation:

The answer for N is suppose to be 3. I cannot figure it out. ^2n+1 is the exponent for the first half of the if statement. ^n+18 is the exponent for the second half of the if statement. If I substitute 3 for the N, is it 8 to the 23 power plus one power? or 8 to the second power times the third power plus one power. Anyway, does 8 to the 7th power = 2 to the 21 power?
Click here to see answer by ankor@dixie-net.com(15628)

Question 394661: 8 -2/3
(8) -2/3
27 2/3
Click here to see answer by Alan3354(30970)

Question 394614: I need the last two digits from the following numbers 11^2011. I need all work t be shown please, so I can fugure out how to do my other problems, PLEASE and super huge thank you!!
Click here to see answer by Alan3354(30970)

Question 394668: (2x-3)(9x6)simplify the following expression.show your work
Click here to see answer by Alan3354(30970)

Question 394818: solve 2x^2-2x=3
Click here to see answer by jim_thompson5910(28476)

Question 394818: solve 2x^2-2x=3
Click here to see answer by stanbon(57226)

Question 394862: the answer to this problem....(21ab^2)(3a^3b)/7a^2b
Click here to see answer by robertb(4012)

Question 396998: Please Help Simplify
((-2x^2)^3)*(4x^3)^-1

Click here to see answer by stanbon(57226)

Question 397013: This one is really bugging me:
I understand that 2(2^n-1) (that is, two times two to the n-1 power) is equal to 2^n since the rule is "add the exponents if the bases are equal"). But why can't I compute it this way: 2(2^n-1) = 4^n-1 which could be rewritten as (2^2)^n-1 which, following the rule "multiply exponents when you have something to a power taken to another power" would then distribute as 2^2(n-1) = 2^2n-2. But this is a completely different answer!
This doesn't make any since so surely I am making an obvious mistake. But given, for example 2(x^n+1) don't get 2x^n+1???
Thank you!
Click here to see answer by jim_thompson5910(28476)

Question 397120: can you please help me answer this questionns...how can i write this calculations in more compact form by using exponents.
a. 5x5x5x5
b.3x3x3x3x3x3x3x3
c.1.5x1.5x1.5x1.5x1.5x1.5
d.(-10)x(-10)x(-10)x(-10)x(-10)x(-10)x(-10)x(-10)
Click here to see answer by solver91311(16868)

Question 397214: i really dont understand the solving for y or x..
Click here to see answer by mananth(12270)

Question 398890: I have difficulty with these type problems: -2(-3)? Minus 2 to a minus 3 exponent.
Click here to see answer by Alan3354(30970)

Question 399324: 2(5)^2-4=

Click here to see answer by rfer(12646)

Question 399104: if 5 to the second power times 5r equals 225, what is r?

Click here to see answer by algebrahouse.com(1079)

Question 399143: 5y cubed plus 6y cubed minus 3y squared minus 4y squared
Is the answer 11y cubed minus 7y squared ? or is it more complicated?

Click here to see answer by jsmallt9(3296)

Question 399634: Write the following Decimal numbers as powers of 10:
a. 0.000001
b.10,000,000
Click here to see answer by checkley79(3039)

Question 399963: Solve for w
18w(to the 3rd power) +12= 0
Click here to see answer by Alan3354(30970)

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