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

Tutors Answer Your Questions about Exponents (FREE)

Question 887403: The angles of elevation of the top of a tower measured from two points 103,923 meters apart on the horizontal ground are 30� and 45�. What is the height of the tower?
Click here to see answer by josgarithmetic(39613)

Question 887538: Please help me solve this equation i am confused by the exponent.
Click here to see answer by 2897696(96)

Question 887556: I have this problem that I just can't figure out! Help please!!
C = 4d-1/3b
C = 4(23,245)-1/3(13.5)

Click here to see answer by stanbon(75887)

Question 888058: (3x^8z^2)^4
Click here to see answer by jim_thompson5910(35256)

Question 888075: The population of Canada is currently estimated at 35 million. It grows annually at a rate of
1.2%. What is the expected population of Canada (in millions) in 15 years if it continues to
grow at this rate. Round your answer to 2 decimal places.[
Please solve fully ?
Click here to see answer by jim_thompson5910(35256)

Question 888087: 4. Mr. Dadar bought a Honda Accord for $25 000. After 12 years, he sells the car for
$5 000. What is the annual depreciation rate for the value of his car?

Click here to see answer by Alan3354(69443)

Question 888369: A rectangular garden measures 40 m times 20 m. It is surrounded by a walkway of uniform width so that the combined area of the garden and walkway is twice the area of just the garden. Determine the width of the walkway to the nearest 10th of a meter
Click here to see answer by josgarithmetic(39613)

Question 888714: how do i show the work to 6 times 6 plus 9 times 7 times 41 divided by 7 times 9

Click here to see answer by Edwin McCravy(20054)

Question 888730: How do I solve (-x)^3 y^3/x^3y^6
I wasn't sure what to do with the -x. Do I just leave it?
Click here to see answer by richwmiller(17219)

Question 888730: How do I solve (-x)^3 y^3/x^3y^6
I wasn't sure what to do with the -x. Do I just leave it?
Click here to see answer by Edwin McCravy(20054)

Question 889132: I just realized that (x-y)^2 is equal to (y-x)^2, if so then can someone please state the usefulness of this identity? Thanks.
Click here to see answer by Alan3354(69443)

Question 889302: Please help me factor out 81y^4 + 64z^4!!
Click here to see answer by Nigelyul(18)

Question 889657: Hello, please, I need to develop and simplify these exponents, I would really appreciate your help. Thanks in advance.

Click here to see answer by Alan3354(69443)

Question 890069: I need help with solving operations with negative exponents
Click here to see answer by Alan3354(69443)

Question 890209: can someone help with this exponent:x^2n times x^2-n.this is what I came up with:x^2n+2-n...but my book says the answer is,x^n+2...how is this done...tks tutors
Click here to see answer by Alan3354(69443)

Question 890650: Eliminate negative exponents and rationalize the denominator in the final answer.
[(3x+5)^1/3 � x/(3x+5)^2/3] / (3x+5)^2/3
I have no idea where to start on this problem. I was trying to solve the subtraction problem in the numerator but the "x" is throwing me off. This problem has rational exponents and complex fractions; both of which I have forgotten how to handle.
Click here to see answer by MathTherapy(10549)

Question 890807: Solve each exponential equation. Give the exact value for x.
3x=4
Click here to see answer by Alan3354(69443)

Question 891383: Use the rules of exponents to simplify problem until left with one number
3 1/2 * 3 5/2
Click here to see answer by harpazo(655)

Question 891790: if (xyz)^0 is equal to 1
then what is (x+y+z)^0?
Click here to see answer by Edwin McCravy(20054)

Question 892010: (4x^6-8x^4+9x^3-12x^2+15)-(2x^6+7x^5-13x^4-4x^3+12x-10)
I need to simplify this to the least
Click here to see answer by Alan3354(69443)

Question 892029: Simplify these expressions so they are written using only one exponent.
(1.04)^3 * 1.04
and
(x^4)^5
Click here to see answer by Alan3354(69443)

Question 892029: Simplify these expressions so they are written using only one exponent.
(1.04)^3 * 1.04
and
(x^4)^5
Click here to see answer by MathTherapy(10549)

Question 892468: Simplify the expression.
9 5/2
Click here to see answer by Fombitz(32388)

Question 892468: Simplify the expression.
9 5/2
Click here to see answer by richwmiller(17219)

Question 892711: Integral Exponents;
Perform the indicated operation;
x^-1+y^-1/(x+y)^-1
Click here to see answer by Alan3354(69443)

Question 892764: the value of 36^24/24^36 on simplification is .....
Click here to see answer by josgarithmetic(39613)

Question 892764: the value of 36^24/24^36 on simplification is .....
Click here to see answer by MathTherapy(10549)

Question 892948: What is the value of the expression when b = 3
4b^4 how do you solve it and
What is the value of the expression when a = 5 and b = 3
4a^2-5b^2
Click here to see answer by Fombitz(32388)

Question 892979: How would I solve, step by step, the problem "(27x^3y^15)^(2/3)*"?
*Note: The fraction (2/3) is functioning as an exponent.
Click here to see answer by Alan3354(69443)

Question 892993: I just recently started this unit and I am so confused. They said to evaluate the following and this is their answer:
8^5 x 4^2 / 2^16
= 2^15 x 2^4 / 2^16
= 2^3
= 8
My question is how did they derive at ^15 and ^4 and ^16. ? Your help is much appreciated. Thank you.
Click here to see answer by Alan3354(69443)

Question 893365: A flask has bacteria in it.
Each second the bacteria doubles itself.
a) How many bacteria are there after 1 second?
b) How many bacteria are there after 1 minute?
**GIVE ANSWER IN THE FORMAT:
So what I did is:
At start:
After - 1 sec: ? I do not know anymore...
Click here to see answer by Fombitz(32388)

Question 893384: write with positive exponents and write in radical form;
(x^1/4)^-1/5
Click here to see answer by Alan3354(69443)

Question 893624: (x to the fifth power divided by x the 6th power) to the 4th power
Click here to see answer by Alan3354(69443)

Question 893945: Hi Do You Guys Teach Students How To Understand Pre-Algebra??
Click here to see answer by Alan3354(69443)

Question 894010: What I want to know is if there is a easier way to solve exponents. Lets say you have 16 to the 18th power. Do you have to sit there doing 16 x 16 x 16, etc, etc? Just wondering. Am I missing something or is this the only way?
Click here to see answer by richwmiller(17219)

Question 893985: how do you solve (g^2/g^6)^3
Click here to see answer by fcabanski(1391)

Question 894619: hope this is the right section. Please could you explain how I simplify
3n2 / 5n
as in 3n squared divided by 5n.
Thank you.
Click here to see answer by Theo(13342)

Question 894640: The quantity (3^5/4)(9^3/2) can be written in the form 3^x. What is the value of x?
Click here to see answer by rothauserc(4718)

Question 895024: what isx to the second power minus 9 y to the second power
Click here to see answer by Alan3354(69443)

Question 895191: Evaluate the expression.
8P0
Click here to see answer by jim_thompson5910(35256)

Question 895248: Please help me solve this equation(6x+6h)^3

Click here to see answer by richard1234(7193)

Question 895433: 5=4+a/9
Click here to see answer by Fombitz(32388)

Question 895375: how do you solve (-3x^4/2y^5)^3
Click here to see answer by Fombitz(32388)

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