Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!

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Algebra: Square root, cubic root, N-th root

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Question 147902: COULD SOMEONE SHOW ME HOW THESE WOULD BE DONE? THE QUESTION IN THE BOOK ASKS TO SIMPLIFY THESE RADICAL EXPRESSIONS. RATIONALIZE THE DENOMINATORS IF NECE SSARY A. 360 B. 3/5 I DO NOT HAVE A BUTTON FOR THE SIGN INDICATING ROOTS BUT THESE ARE IN ROOT FORM. C. 3ROOT SIGN 24/125 D. 3 ROOT SIGN 2/3 IF YOU CAN HELP I WOULD BE GRATEFULL.
Click here to see answer by stanbon(26259)

Question 148551This question is from textbook

: i need to know what square root is equal to 24This question is from textbook

Click here to see answer by Alan3354(6059)

Question 143512: Solve (show your check)
sqare root of X + 2 + 15 = 11
Click here to see answer by tennisbuff07(20)

Question 148730: Television sets: What does it mean to refer to a 20 inch tv set or a 25 inch tv set? Such units refer to the diagonal of the screen. A 20 in set has a width of 16 inches what is the height?
What is the height of a 20 inch TV? _____inches

Click here to see answer by oscargut(682)

Question 148929: I need some help with 3 math problems I am getting started but cant get finished can some please so me what I am doing wrong These 2 problems are directions use the square root property to solve the following
7x^2=21 i got +/- square root of 3

(z+3)^2=8 i started like this

z+3=8 z+5 so my ans is z=5 of z=-5

This problems direction is complete using the quadratic formula to solve
15T^2 + 7T - 2 = 0
x=7 square root 14-4 x 15 x 7 = 14-420/30 = -406/30 and thats where I get stuck Thanks for the help Leann
Click here to see answer by checkley77(7035)

Question 148970: The problem is:
3x^2+5=11
I started by subtracting 11 from both sides to turn the equation into:
3x^2+5-11=0
I believe I then have to factor but im not sure how? What would be the next step if the above is correct?
Click here to see answer by mangopeeler07(450)

Question 148962: I need some help with this problem. I have tried to work it and cannot seem to come up with the answer All the directions say is to complete the square to solve the following equations
x^2+6x=7 ( i know that you need to get every thing on 1 side but then what)
x^2+6x-7=0

and with this problem the same directions but would you us the quadratic formula to solve? 2x^2-5x-3=0 Thanks Leann
Click here to see answer by ankor@dixie-net.com(6691)

Question 149512: Directions: Solve the Equation.
sqrt21-x = x-1
I am not sure if I have to get rid of the square roots in the beginning or try to formulate an equation first.

Click here to see answer by Alan3354(6059)

Question 149738: Hi, I need some help on one of my questions. I need to make g the subject...
T = 2(pie)*[square root of l/g^3}
Can someone please help me......
Click here to see answer by josmiceli(3003)

Question 149745: Hi, I need some help on one of my questions. I need to make g the subject...
T = 2(pi)*[square root of l/g^3}
Can someone please help me......: and its the letter L not the number 1
Click here to see answer by jojo14344(1483)

Question 149754: 3rd time lucky maybe
I need some help on one of my questions. I need to make g the subject...
T = 2(pi)*[square root of (l/g^3)}
Can someone please help me......: and its the letter L not the number 1
Click here to see answer by jim_thompson5910(13787)

Question 149973: square root of T+3 minus the square root of T-2 equals the square root of 7-T
Click here to see answer by Fombitz(2113)

Question 150371:
Simplify √ (32x^5y^2) that is sqrt (32x^5y^2)
{ Show your work }
Click here to see answer by Alan3354(6059)

Question 150474: _____ _____
√2t^5 • √10t^4
Click here to see answer by jim_thompson5910(13787)

Question 150475: (3 - 2√7)(3 + 2√7)
Click here to see answer by jim_thompson5910(13787)

Question 150473: ______
√7x + 29 = x + 3

Click here to see answer by ankor@dixie-net.com(6691)

Question 150678: sqrt3 sqrt3
----- - -----
sqrt6 -1 sqrt6 + 1

sqrt9x^2 = x + 6
I am having a hard time figuring these out. Can you help?(sqrt means square root)
Click here to see answer by stanbon(26259)

Question 150948: sqrt of 7/8
Click here to see answer by jim_thompson5910(13787)

Question 150960: if a room is 4 feet by 5 feet, how many square feet are there?
Click here to see answer by jim_thompson5910(13787)

Question 150961: if a single roll of wallpaper will cover 3 square meters, how many single rolls will it take to cover a will 2 meters x 5 meters?
Click here to see answer by jim_thompson5910(13787)

Question 151258: Expand and simplify the following: (sqrt4 + sqrt3)(sqrt2 - sqrt4)
*This is the same equation I have sent previously, however, I wanted to add more information for you to understand.
Click here to see answer by joLeeBee(6)

Question 151257: (sqrt4 + sqrt3)(sqrt2 - sqrt4)

Click here to see answer by jim_thompson5910(13787)

Question 151453: sqrt(t+12)-t=0 is the problem. solve algebraically and check potential solutions
I'm not sure whether to add t+12 then square or distribute after t^2+12^2-t=0
Click here to see answer by checkley77(7035)

Question 151530: A).
Show the steps that you would take to solve the following algebraically:

3/x-3 = x/x-3 minus 3/2

B.) What potential solution did you obtain. Explain why this is not a solution.
Click here to see answer by jim_thompson5910(13787)

Question 151532: what is the sqrt of 30,875?
Click here to see answer by jim_thompson5910(13787)

Question 151535: simplify
3rd root of(3 times the sqrt of (3))
Click here to see answer by jim_thompson5910(13787)

Question 151868: how many roots does x^6-28x^3+27=0 have? (hint: trinomial expression, use y = x^3)
Click here to see answer by Earlsdon(4898)

Question 151956: simplfy 5 divided by the square root of 3
Click here to see answer by checkley77(7035)

Question 152255: I am not sure if this problem pertains to the subject, but here it is.
4a^3(-6a)^3
I tried to multiply it out, but don't know if the answer I got was right. My answer is -24a^9
Click here to see answer by scott8148(3382)

Question 152271: Could someone help me simplify (fourth root √36) X √5?
Click here to see answer by Alan3354(6059)

Question 150949: sqrt32x^6y^11+2xsqrt98x^4y^11=
Click here to see answer by orca(409)

Question 152937: Square root of t - 15 = 1
Click here to see answer by Earlsdon(4898)

Question 153065: √-1=?
Click here to see answer by Earlsdon(4898)

Question 153065: √-1=?
Click here to see answer by jim_thompson5910(13787)

Question 153302: 7 sq rt 100
_____________ (divided by)
sq rt 500
Do I multiply both sides by sq rt 500 to get rid of it?
Does this make it 7 sq. rt. 50,000?
I am not sure how you divide using radicals. Thanks for any help!
Click here to see answer by jim_thompson5910(13787)

Question 153418: (11square root of -12)(-12square root of -1)
Click here to see answer by orca(409)

Question 154044: how do you write the decimal approximation to the nearest 10th?
Click here to see answer by nerdybill(2446)

Question 154005: (sqr of 12xy)cubed times (x times sqr of xsquared y)=
Couldn't figure out how they got the answer they did?
Click here to see answer by ankor@dixie-net.com(6691)

Question 154166: wat is a cube??
Click here to see answer by Alan3354(6059)

Question 154232: Simplify. Assume variables are nonnegative.
-3sqrt50
sqrt(18ab) * sqrt(6ab^3)
sqrt54/sqrt24
sqrt(1/7)
sqrt12 + 2sqrt27 - sqrt48
Click here to see answer by jim_thompson5910(13787)

Question 154231: Solve:
sqrt(x+1) = sqrt(2x-6)

-sqrt(y) - 8 = 6
Click here to see answer by Alan3354(6059)

Question 154262: (3 square root of 6)(2 square root 2)
Click here to see answer by checkley77(7035)

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