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

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Tutors Answer Your Questions about Exponents (FREE)


Question 54222: x^-1.5=27 . . . . . . I know that the answer is 1/9, but I have no idea how to get there.
Click here to see answer by funmath(2873) About Me 
Question 54222: x^-1.5=27 . . . . . . I know that the answer is 1/9, but I have no idea how to get there.
Click here to see answer by checkley71(8405) About Me 

Question 52914: determine which of the following relations is also a function.if the given relation ia a function then indicate the domain and range of the function using set notion such as={2,5,6,10,11},range={8,4,1,1,0}
1.{(-1,10),(3,7),(4,5),(-6,3),(3,-6),(1,-10),(9,-4)}
2.{(-2,9),(10,9),(-6,6),(8,-10),(7,-1),(-2,-5)}
3.{(-10,-2),(-1,10),(6,-9),(5,10),(-7,8)(5,-6),(-3,7),(1,-9)}
4.{(8,8),(3,-2),(-6,-3),(-4,-1),(_4,4),(1,-6),(9,-2)}





















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Question 54344: What is the awnser to this problem? 5(11 + 22 - 10) – 19
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Question 54344: What is the awnser to this problem? 5(11 + 22 - 10) – 19
Click here to see answer by Destionay(3) About Me 

Question 54467: Simplify.
x^-2y^3

Click here to see answer by funmath(2873) About Me 

Question 54484: What is the difference between negative numbers in parenthesis with an exponent outside the parenthesis and a negative number with an exponent with no parenthesis ?
(-2)^2
or
-2^2

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Question 54563: x^2=25,other than trial and error,how does one solve for x
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Question 54824: simplify: 6^6+6^6+6^6+6^6+6^6+6^6 (Leave your answer in the exponential form.)
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Question 54948: I am stuck on correct answer for:
if x = 3 and y = -2, then -xy^2 =
I believe the answer is -12, am I correct? If not, what is correct answer?
I am not using any specific book. I am just practicing...

Click here to see answer by Professor Goode(3) About Me 

Question 54947: I am stuck on correct answer for:
one of the factors of x^2 + x - 6 is:
I believe the answer is x + 3, am I correct? If not, what is correct answer?
I am not using any specific book. I am just practicing...

Click here to see answer by Professor Goode(3) About Me 

Question 54946: I am stuck on correct answer for:
(y - 3x)^2 =
I believe the answer is y^2 - 6xy - 9x^2, am I correct? If not, what is correct answer?
I am not using any specific book. I am just practicing...

Click here to see answer by Professor Goode(3) About Me 

Question 54945: I am stuck on correct answer for:
(1 - 0.7) - 7.47 =
I believe the answer is -7.17, What is correct answer to this?
I am not using any specific book. I am just practicing...

Click here to see answer by jenrobrody(19) About Me 

Question 54943: I am stuck on correct answer for:
8
_ equals:
5

I believe the answer is 1.6, What is correct answer to this?
I am not using any specific book. I am just practicing...

Click here to see answer by rapaljer(3622) About Me 

Question 54942: I am stuck on correct answer for:
9x - 7y - x + 4y =

I believe the answer is 8x - 3y. What is correct answer to this?
I am not using any specific book. I am just practicing...

Click here to see answer by rapaljer(3622) About Me 

Question 54944: THE ECONOMY OF A DEVELOPING COUNTRY IS BASED ON AGRICULTURAL PRODUCTS , INDUSTRIAL PRODUCTS AND MINING PRODUCTS . AN OUTPUT OF ONE TON OF AGRICULTURAL PRODUCTS REQUIRES AN INPUT OF 0.1 TON OF AGRICULTURAL PRODUCTS , 0.01 TONS OF INDUSTRIA PRODUCTS , 0.02 TONS OF MINING PRODUCTS . AN OUTPUT OF ONE TON OF MINING PRODUCTS REQUIRES AN INPUT OF 0.01 TON OF AGRICULTURAL PRODUCTS ,0.05 OF INDUSTRIAL PRODUCTS AND 0.13 OF MINING PRODUCTS . ONE TON OF INDUSTRIAL PRODUCTS REQUIRED AN INPUT OF 0.04 OF AGRICULTURAL PRODUCTS , 0.15 OF INDUSTRIAL PRODUCTS , AND 0.03 OF MINING PRODUCTS .
QUESTION :
1)Find the necessary gross productions to provide surplusses of 2300 tons agricultural , 3000 tons of industrial products and 4500 tons of mining products

2)distribute the gross production among derived and independent demands

Click here to see answer by jenrobrody(19) About Me 

Question 54783: The function is written in long form to describe a visual branching problem-- a center star with three points, each of those branching to three points, etc.
For n=1, total points (x) = 1
For n=2, total points (x) = 1 + 3
For n=3, x = 1 + 3 + 3 squared
For n=4, x = 1 +3 + 3square + 3 cubed
So the last number in the sequence is always 3 with an exponent of (n-1)
Short of brute force with a calculatorm how would I calculate x for n=100?
How would I write the formula?

Click here to see answer by stanbon(26297) About Me 

Question 55050: (-3a^2b)(2a^2b^3)^3 Please help
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Question 55154This question is from textbook Beginning Algebra
: Divide. x^4+x^2-80 from x+3. I get stuck on the +3 part of the division.This question is from textbook Beginning Algebra

Click here to see answer by ankor@dixie-net.com(6693) About Me 

Question 55227: please help
simplify
(3x^-2y)(2x^-3y^-2)

Click here to see answer by funmath(2873) About Me 

Question 51731: (32a^9)(4a^-2)/ 128a^2 I am having a real problem with that question because I dont go to a regular school where I am taught a lesson. I go to an alternative school and they just give me the work and expect me to know it. If you could please help me understand it I would really appricate it.
Click here to see answer by piyu(4) About Me 

Question 55450: I am suppost to simplify the following and execute all multiplication and division: (x+3)^3
This is what I have: x^3+9x^2+27x+27 not sure if it is right
Thanks, Lackinmath

Click here to see answer by Cintchr(475) About Me 

Question 55442: I'm stmped on this one!
I am suppose to simlify the, using positive exponents only, and be sure to execute all multiplication and division.
(4x^2-4x+3)/(x-2) This is what I have:-2x^2+6x+3/y-5/2 for my final answer
Thanks, Lackinmath

Click here to see answer by ankor@dixie-net.com(6693) About Me 

Question 55681: I am trying to solve for a "to the power of x" equation using a scientific calculator.
I have started with an example for which I know the answer
How do you use a calculator to solve for, for example:
5 to the power of x = 125
Solve for x.
I know x =3 but how do you get the calculator to tell you this!
Ultimately I want to know how to solve for
0.5 = 1 - e to the power of (-8.9*t)
Solve for t.
Calculator crazy,
Heather

Click here to see answer by Earlsdon(4900) About Me 

Question 55590: Trying to help my son, but has been too long!
Please help me solve
From TAKS (Texas) test practice worksheet.

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Question 55726: 3x^-2
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Question 55725: 10^-4
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Question 55745: We are able to convert to basic scientific notation but the confusion is coming in when an exponent is given in a number such as 300,000^2 or when asked to give the scientific notation for 800^4-400^2 Thanks!
Click here to see answer by stanbon(26297) About Me 

Question 55987: What is the answer to this exponent problem.
(0)2 is it zero?

Click here to see answer by funmath(2873) About Me 

Question 56105: I have this math HW and I dont know how to answer some of the questions, can you pleeeaaase help me?
the "question" is: Write each power as a product of the same factor. (power as in exponent) :-) here's an example: 2 to the 4th power
So how do I do it?
Please help me
-Lexi
P.S.- I'm in seventh grade and I beleive we use Prentice Hall books.

Click here to see answer by funmath(2873) About Me 

Question 56547: 3x-4y2 when x=-2 and y=4
Click here to see answer by tutorcecilia(2042) About Me 

Question 56475This question is from textbook College Algebra
: How do i complete the problem
2x squared y negative squared
if x=-5 and y=7
This question is from textbook College Algebra

Click here to see answer by ankor@dixie-net.com(6693) About Me 

Question 56659: How can i solve
Click here to see answer by rchill(405) About Me 

Question 56657: How can i solve
Click here to see answer by rchill(405) About Me 

Question 56672: This is the question: Simplify each quotient, using a positive exponent. Assume each variable does not equal zero
How would I solve this:

I know if i didnt have to do that it would be so how would i do what the question says?

Click here to see answer by Hook(36) About Me 

Question 56706: If a rope is wound around a wooden pole, the number of pounds of frictional force, F, between the pole and the rope is a function of the number of turns, N, according to the equation f=14*10^0.70n. What is the frictional force when the number of turns is: 0.5, 1, 3?
Click here to see answer by stanbon(26297) About Me 

Question 56820: Question: Simplify the expression. Give the answer as a simple fraction.


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Question 56835This question is from textbook Algebra 1
: x^a+4=x^4x^8 Solve for a.
THANK YOU!
This question is from textbook Algebra 1

Click here to see answer by funmath(2873) About Me 

Question 56929: simplify - (4X³)(-2X4)³
(4x to the third power)(-2x to the 4th power)³

Click here to see answer by funmath(2873) About Me 

Question 56986This question is from textbook Algebra 1
: (3a^3)^2/18a^2
THANK YOU!
This question is from textbook Algebra 1

Click here to see answer by funmath(2873) About Me 

Question 57052: 29. evaluate.
y2 - 7, when y = -10
48. Express using posotive exponents. then simplify.
1/h power of -n
89. divide and simplify.
(8x)4/(8x)10
98. x to the power of -9/x to the power of -3

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Question 57045: please help me to solve this

(a^8)^-3/4

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Question 57216: (3m^2n^4 OVER 2mn^3)^3
Click here to see answer by funmath(2873) About Me 

Question 57299This question is from textbook intermediate algebra
: 5 to the -8002 power times 5 to the 7999 power over 6 to the 212th power times 6 to the -214th power. Help!This question is from textbook intermediate algebra

Click here to see answer by venugopalramana(3286) About Me 

Question 57359: simplify this expression. dealing with exponents
(2^5/3y^-2/3)^3

Click here to see answer by funmath(2873) About Me 

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