Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

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Question 830362: Simplify
a^(1/2) / a^(2)
This is a fraction. not sure if I typed it in right?
a with the exponent of 1/2 over a with exponent of 2. I need to simplify and show steps?

Click here to see answer by Fombitz(32388)

Question 830434: √18-√8-√24
Click here to see answer by Fombitz(32388)

Question 830432: Hey I've tried this question but it just doesnt seem right...
6√9a-2√3a-√25+√27a+√a
The answer I got was 28√3a+√a?
Click here to see answer by richwmiller(17219)

Question 830436: 3√7-2√28-2√2+8√18?
I don't think that I did this question right...
Click here to see answer by josmiceli(19441)

Question 830453: How would you simplify:
√18-√8-√24?
Click here to see answer by josmiceli(19441)

Question 830742: The square root of x -2=2/3
Click here to see answer by Fombitz(32388)

Question 830745: Extraneous solutions are solutions that cannot be found?
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Question 830748: The Square Root of x(space) -1/3=4
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Question 830747: The Square Root of x/3=8
Click here to see answer by oscargut(2103)

Question 830747: The Square Root of x/3=8
Click here to see answer by Fombitz(32388)

Question 830758: Square root of x/3=8
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Question 830833: sqrt(2p-1) + sqrt(p-1)=1
Click here to see answer by stanbon(75887)

Question 830846: what is six raised to third power minus four squared is equal to twice of ten squared.
Click here to see answer by Alan3354(69443)

Question 831387: If the top edge of a 15ft. Ladder reaches a window 12ft. Above the ground,how far from the house is the ladder placed
Click here to see answer by mananth(16946)

Question 831212: cube root(4a^2y) multiply cube root(2a^2y^2)
Click here to see answer by Fombitz(32388)

Question 831700: The life expectancy of a woman is given by the model L(t)= √0.3t^3-5.5t^2 +70t+6000 where L is average life expectancy of a woman and t is the number of years after 1990. Find the average life expectancy of a woman in the year 2015. Round your answer correct to two decimal places if needed.
Please help.
FYI: all the numbers from 0.3t are under a radical. Thanks
Click here to see answer by edjones(8007)

Question 832170: 2 x sqrt x+11 = (sqrt x +2) + (sqrt 3x - 6)
Solution
(2 x sqrt x+11)^2 = (sqrt x +2)^2 + (sqrt 3x - 6)^2
4 x (x+11) = (x+2) + (3x-6)
4x +44 = 4x - 4
48 = 4x - 4x
Ugh ?
Click here to see answer by Fombitz(32388)

Question 833172: Find all the meaningfull replacements for the variables in each rational expression
X-2/2x-4
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Question 833168: Rational expressions
2m+3 divided by 6m+m^2
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Question 833453: how can you rationalize this question?
6 / 3+sqrt6
Click here to see answer by Alan3354(69443)

Question 834332: solve the following by completing the square
7x(squared)-7x-1=0
Click here to see answer by josmiceli(19441)

Question 834833: Use a calculator to find the square root. Give the answer to four decimal places.

radical 350
Ive gotten 18.70,1870.8, .1870, 18.7082, and countless other answers but none of them are correct
Click here to see answer by richard1234(7193)

Question 835365: what does radical x^3 divided by radical x^2y^4 equal to? Thank You
Click here to see answer by Fombitz(32388)

Question 835494: 1-(9-27)^3/2=217
Click here to see answer by Fombitz(32388)

Question 835681: (b/7)squared is what simplified?
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Question 835185: find and simplify each of the following f(-1), f(0.5) and f(sq root 2)
problem is f(x)= sq root x^2+2
Click here to see answer by Fombitz(32388)

Question 836083: (square root 13 - square root 2) (square root 13 - square root 2)
what is the solution for the above sum?
Click here to see answer by Fombitz(32388)

Question 836280: 7-sqrt(1-4x)-sqrt(4-6x)=0
I have no idea how to do this problem. Please help!
Click here to see answer by jim_thompson5910(35256)

Question 836554: what is radical 84 divided by 2 radical 3?
Click here to see answer by richwmiller(17219)

Question 836554: what is radical 84 divided by 2 radical 3?
Click here to see answer by Edwin McCravy(20054)

Question 836534: How do you write 57 to the 1/4 power and 10 times x to the 1/3 power in radical form? Thank you very much! :)
Click here to see answer by richwmiller(17219)

Question 836577: square root of 81x to the 2ndy to the 5

Click here to see answer by doodles(24)

Question 836813: Determine the real solutions if any of the given equation:
sqroot(4x-5) - sqroot(2x-3) = 1
Click here to see answer by richwmiller(17219)

Question 836828: Find a number that is between 8/11 and 17/20 (0.85)
Click here to see answer by LinnW(1048)

Question 837017: How do you solve
Ysqrt7+8y=6
And
Sqrt3x-6 + 2 = sqrt3x+26
I have a test tomorrowand idk how?????

Click here to see answer by Alan3354(69443)

Question 837057: hello everyone. I have these two problems to solve about Relations and Functions so I hope that I picked the right tab to post these under. I have tried to look up on youtube and also the teachers examples but they look NOTHING like the problems I was assigned so I am completely lost. any help would be GREATLY appreciated!
first one is h(x)=-3x^2 and the second one is h(x)=-square symbol x-1 (I don't know how to put the square symbol over the x-1
thank you to anyone that can help me better understand this!
Click here to see answer by richard1234(7193)

Question 837059: was asked to repost.
Make sure you have at least five points for each equation to graph. Show all math work for finding the points
�Specifically mention any key points on the graphs, including intercepts, vertex, or start/end points. (Points with decimal values need not be listed, as they might be found in a square root function. Stick to integer value points.)
�Discuss the general shape and location of each of your graphs.
�State the domain and range for each of your equations. Write them in interval notation.
�State whether each of the equations is a function or not giving your reasons for the answer.
�Select one of your graphs and assume it has been shifted three units upward and four units to the left. Discuss how this transformation affects the equation by rewriting the equation to incorporate those numbers.

hello everyone. I have these two problems to solve about Relations and Functions so I hope that I picked the right tab to post these under. I have tried to look up on youtube and also the teachers examples but they look NOTHING like the problems I was assigned so I am completely lost. any help would be GREATLY appreciated!
first one is h(x)=-3x^2 and the second one is h(x) = -sqrt(x-1)
thank you to anyone that can help me better understand this!
Click here to see answer by richard1234(7193)

Question 837102: Multiply, simplify if possible, assume all variables are positive
Cube radical -3 times cubed radical 9
Click here to see answer by jim_thompson5910(35256)

Question 837252: Why is it important to find non perfect roots in radical form to simplify the process of performing basic operations with radical expressions?
Click here to see answer by stanbon(75887)

Question 837613: Can't figure this out for the life of me.Thanks in advance
(3m^2/3-4m^-1/3) factor out m^-1/3
Click here to see answer by josh_jordan(263)

Question 837613: Can't figure this out for the life of me.Thanks in advance
(3m^2/3-4m^-1/3) factor out m^-1/3
Click here to see answer by Edwin McCravy(20054)

Question 837715: Find the indicated root. (I don't know what that's or how to get it)
Square root of 4a squared

Click here to see answer by ankor@dixie-net.com(22740)

Question 838368: sqrt(4x+5)+5=2x
Click here to see answer by ewatrrr(24785)

Question 838490: How do you solve a Radical with a pair of parentheses in it?
For example: ^3sqrt over: (a-1)^4
Click here to see answer by Alan3354(69443)

Question 838506: Cube.rt -27r^2s^3/t^5
simplify. Assume all variables are positive. Express answers in radical form.
THANK YOU SO MUCH FOR HELPING ME!!!
Click here to see answer by Fombitz(32388)

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