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

Tutors Answer Your Questions about Exponents (FREE)

Question 472901: find the value of x in the equation x squared +5= x+45 squared
Click here to see answer by stanbon(75887)

Question 473326: Hope you can help me.....
4.62 ... 2 is exponent sorry
(7-1)-3.... -1 is exponent and also -3
9-3 / 9-4.... -3 is exponent and also -4
(7/2)-2 .....-2 is the exponent
(11 4 / 11 -4)0.... 4 and -4 are exponents and also 0 is exponent...
sorry if you had a hard time scrutinizing it....
THANK YOU!!
Click here to see answer by Edwin McCravy(20054)

Question 473483: I am trying to work through the following problem. I have the answer.. but I am trying to figure out how to work to that answer properly.
(X^aY^b * X^bY^a)^c
Click here to see answer by unlockmath(1688)

Question 473664: If there are 8x10^12 hydrogen molecules in a volume of 4x10^4 cubic centimeters, what is the average number of hydrogen molecules per cubic centimeter? answer in scientific notation
Click here to see answer by Alan3354(69443)

Question 473827: In(3)-2(In(4)+In(8)
Click here to see answer by stanbon(75887)

Question 474256: a^3 - 4a
________
a (a-3) for a= -2
Click here to see answer by MathLover1(20849)

Question 474256: a^3 - 4a
________
a (a-3) for a= -2
Click here to see answer by stanbon(75887)

Question 474329: How to you work 16 to the 3/4 power
Click here to see answer by stanbon(75887)

Question 474353: g(x)=4x-5, find g(-3)
Click here to see answer by Alan3354(69443)

Question 473328: (a -2 b)4.... -2 and 4 are the exponents....
(-4c -3)5.... 5 is the only exponent...
73 / 73... all the number 3 are exponent....
(e 7 f -7)6..... 7, -7 and 6 are exponents...
(g -2) 3 h 5 / h -3..... -2, 3, 5, and -3 are the exponents..
(j -3 ) 4 k 4 / k -1.... -3, 4, 4, and -1 are the exponents...
THANKS ... I know you'll answer this cause I've also asked a question last time...
Click here to see answer by richard1234(7193)

Question 474603: 4x^4-7x^3-12x^4+6x^3
Click here to see answer by Tatiana_Stebko(1539)

Question 474606: (2xy^6)^5
Click here to see answer by Tatiana_Stebko(1539)

Question 474696: 6.02x10^-4=0.153^-N
I cannot remember how to derive N from this.
Click here to see answer by Earlsdon(6294)

Question 474660: Can you show me how to solve: Use the laws of exponents to simplify. Write the answer with positive exponents. (16K^4 . m^-8)^1/4
Click here to see answer by ankor@dixie-net.com(22740)

Question 474735: simplify
-5a exponent -3 b exponent -5
Click here to see answer by stanbon(75887)

Question 474747: simplify
(m^-4)^-5
Click here to see answer by MathLover1(20849)

Question 474745: x^13/x^5
Click here to see answer by rfer(16322)

Question 474743: Simplify
(x^-9)(x^2)
Click here to see answer by rfer(16322)

Question 475261: Find the exponential fuction of the form
which satisfies the given conditions
Passes through the points (0,2) and (-1, 2/7)
Click here to see answer by robertb(5830)

Question 475174: Use the equation and type the ordered-pairs.
1) y=3^x
2) y = 10^x
3) y=(1/2)^x
4) y = 3^-x
5) y = 3^(x + 1)
6) y = 2^(2x)
7) y = 1^x
8) y = -(2^x)
9) y = 2^(-x)^2
THESE ARE SO CONFUSING I KEEP GETTING FRACTIONS FOR Y
Click here to see answer by richard1234(7193)

Question 475610: q3r2s
_____

q2rs =

m3n2o
_____
m2n2o=
Click here to see answer by stanbon(75887)

Question 475638: Simplify the expression: (4/x)^3
The simplified expression should have no negative exponents.
Thank you very much!
Click here to see answer by jim_thompson5910(35256)

Question 475636: Evaluate the expression 2^5/2^3 and write your
answer as a fraction in simplest form.
Thanks so much!
Click here to see answer by jim_thompson5910(35256)

Question 475648: 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.
Thank you so much!
Click here to see answer by faceoff57(108)

Question 475649: The model y = 17(1.9)^x is classified as
a. exponential growth
b. exponential decay.
Thanks!
Click here to see answer by robertb(5830)

Question 475650: The model y = 22(0.8)^x is classified as
a. exponential growth
b. exponential decay.

Thanks for helping me!
Click here to see answer by robertb(5830)

Question 475679: Please help me solve this equation:
Click here to see answer by jim_thompson5910(35256)

Question 475637: Evaluate the expression (2/3)^3 and write your answer as
a fraction in simplest form.

Click here to see answer by richard1234(7193)

Question 475644: Evaluate the expression and write the result in decimal form:
(3 x 10^-2)�(12 x 10^3)
Thanks for the help!
Click here to see answer by Alan3354(69443)

Question 475631: Evaluate the expression 5^-3 and write your answer as a
fraction in simplest form.
Thanks for your time!
Click here to see answer by ankor@dixie-net.com(22740)

Question 475634: Evaluate the expression (1/3)^-1 and write your answer as
a fraction in simplest form.
Thanks for the help!
Click here to see answer by ankor@dixie-net.com(22740)

Question 476257: simplify the following expression, and rewrite it in an equivalent forom with positive exponents.
(4x^-3)^-4
Click here to see answer by Edwin McCravy(20054)

Question 476715: I was asked to describe three rules for exponents and came up with the following:
Product Rule � When multiplying numbers with the same base we add the exponents together
Quotient Rule � When dividing numbers with the same base we keep the base, subtracting the exponent of the denominator from the exponent of the numerator
Power Rule � This is where we raise the base and multiply the exponents
Will those descriptions suffice? Also can you please provide me with an example of an expression that uses scientific notation and at least one of the rules for exponents that I have described? Please and thank you.
Click here to see answer by stanbon(75887)

Question 476951: the GCF for 5x^7, 5X, -20

Click here to see answer by jim_thompson5910(35256)

Question 477138: what is -(2p) squared, where p= 7?
Click here to see answer by stanbon(75887)

Question 477184: What is the value of (5^3/2) - (5^1/2) ?
A) 1/5
B) 1/2
C) 1
D) sqrt (5)
E) 4 sqrt (5)
Please clearly explain how I could approach and solve this, thanks!
Click here to see answer by Alan3354(69443)

Question 477751: what is the unit digit of 7raisedto 155 how to solve it?
Click here to see answer by Theo(13342)

Question 478181: 3^1/2
Click here to see answer by Alan3354(69443)

Question 478313: what is the square root of 150x^3 divided by the square root of 2x?
The first square root is alone with the 150x^3 and the other is alone with the 2x.
Show work please.
Click here to see answer by Alan3354(69443)

Question 478524: Sir/Madam ,
Please help me to solve my problem . I Will be very grateful for your help. My question is :
If (4.8)^x=(0.48)^y=1000 then what is the value of 1/x � 1/y ?
As the Answer given is :1/3
So please Sir/Madam provide me the steps for this question..

Thank you,
Click here to see answer by lwsshak3(11628)

Question 478782: hello. can you please help me with the following question.
simplify:
(-3x^2y^2)^-2 all divided by (xyz)^-2
Click here to see answer by Tatiana_Stebko(1539)

Question 479571: Hello Sir/Madam.
Can you please help me with this question.
simplify: (3^n - 3^n-1)(3^3 * 3^n - 27 * 3^n-1)
Click here to see answer by Tatiana_Stebko(1539)

Question 479571: Hello Sir/Madam.
Can you please help me with this question.
simplify: (3^n - 3^n-1)(3^3 * 3^n - 27 * 3^n-1)
Click here to see answer by lwsshak3(11628)

Question 479769: Simplify by doing the indicated operations and combining like terms.

Thank you!
Click here to see answer by ewatrrr(24785)

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