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

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Question 96765: square root of 149 left in its radical form

Click here to see answer by jim_thompson5910(28504)

Question 96764: square root of 149 left in its radical form

Click here to see answer by tutorcecilia(2152)

Question 96594: find the perimeter of the triangle
4 , /5 - /3, /5 + /3 radical equations
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Question 96815: evaluate if possible
the radical expression
3/(-8/27)

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Question 96821: use the properties for radicals to simplify each of the following expressions. Assume that all variables repreent positive real numbers
/(48x^3/5)
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Question 96820: use the properties for radicals to simplify each of the following expressions. Assume that all variables repreent positive real numbers
/(5/3)
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Question 96817: use property 1 to simplify the following radical expressions. assume that all variables represent positive real numbers
/50
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Question 96818: use property 1 to simplify the following radical expressions. assume that all variables represent positive real numbers
/72x^3
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Question 96819: use property 1 to simplify the following radical expressions. assume that all variables represent positive real numbers
/(10/49)
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Question 97101: I am trying to figure out how to convert to exponential notation. The question is: sq root 5, cube root 5. I don't have the square root symbol on my keyboard so I hope my question is understandable. thank you , Stacy
Click here to see answer by stanbon(57246)

Question 97111: Alrighty, here is the question,
6
_____
3+ sqrt 5 , I know that you have to use the conjugates when the same # with the different sign in the middle, so it should then look like this
6 3-sqrt5 18 +6sqrt 5
__________*______ =
3+sqrt 5 3-sqrt 5
then I think you foil the denominator, and get (3+sqrt5)(3-sqrt5), and this = to 9+3-sqrt5+3+sqrt5, and sqrt -5 and sqrt 5=-25, =-5and the middle cancels out and leaves you with 9-5=4 but the answer in the back of book is 9-3sqrt5
_______
2
how did they get that? thank you for your time. Stacy
_____
Click here to see answer by jim_thompson5910(28504)

Question 97130: Find the length x in the triangle. Express your answer insimplified radical form
10, 8, x
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Question 97129: solve the radical equation check your solutions
/2y+7+4=y
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Question 97129: solve the radical equation check your solutions
/2y+7+4=y
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Question 97127: solve the radical equation check your solutions
/x+4=3
Click here to see answer by Nate(3500)

Question 97128: solve the radical equation check your solutions
/4x+1+3=0
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Question 97131: homeowner wishes to insulate her attice with fiberglass insulation to conserve energy. The insulation comes in 40 cm wide rolls that are cut to fit between the rafters in the attic, if the roof is 7 m from peak to eave and the attic space is 3m high at the peak, how long does each of the pieces of insulation need to be? Round to the nearest tenth.
Click here to see answer by checkley71(8403)

Question 97248: Find the real solution of 2x^(2/3)-5x^(1/3)-3=0
Click here to see answer by mathslover(135)

Question 97422: sqrt(2x+3)-sqrt(x+1)=1
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Question 97533: find the distance between each pair of points
(-3,0) and (4,0)
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Question 97886: √8 √20 4√12 8√5+√5
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Question 97893: Please help me solve for R in the following equation:
8L=sqrt 5F/R
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Question 98065: Please help me I am not sure how to sovel this. Use property 1 to simplify. Assume all variables represent positive real numbers.
Click here to see answer by stanbon(57246)

Question 98028: Okay, I guess I did not get it. the little 3 outside the square root of 8y^3
please explain.
Click here to see answer by scott8148(6628)

Question 98091: Could some one please show me how to solve this expression. I am not really understang how to simplify. Assume that all variables represent positive real numbers.
sqrt
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Question 98075: Please help me I am not sure how to sovel this. Please need some help. Evaluate if possible.
Click here to see answer by ankor@dixie-net.com(15638)

Question 98095: Could someone please show me how to simplify by combining like terms. I am not sure how you combine the sqrt of this equation.
sqrt 63 - 2 sqrt 28 + 5 sqrt 7
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Question 98097: Could someone please show me how to multiply and then simplify this expression. I have a few other problems like it and I am not sure how to solve it.
sqrt 13 * sqrt 5
I understand that by multiping 13 * 5= sqrt 65
How do I simplify this????
Click here to see answer by stanbon(57246)

Question 98139: (sqrt.of 7-2sqrt.of 3) (sqrt of 7 + 2sqrt of 3)
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Question 98145: Solve algebraically and check your potential solutions: sqrt(x+20)-x=0

Click here to see answer by mathslover(135)

Question 98145: Solve algebraically and check your potential solutions: sqrt(x+20)-x=0

Click here to see answer by edjones(7569)

Question 98188: Rationalize the denominator if necessary. Then simplify each radical expression. Could someone help me I am unable to solve this expression.

Click here to see answer by Edwin McCravy(8882)

Question 98254: Please help me I am unable to slove this expression.
-9-sqrt108 /3
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Question 98254: Please help me I am unable to slove this expression.
-9-sqrt108 /3
Click here to see answer by edjones(7569)

Question 98286: I think this is the category this problem falls under:
(15.91)
1.96 --------
("square root" 15)
I don't know what to do, I'm pretty sure I would take the square root of 15 and times it by itself and the 15.91 and then that cancels out the bottom of the fraction. Then I have 1.96 (15.91) square root of 15. Then I would take the square root of 15, well that's where I get lost. I can't take anything out of 15 I dont think. I mean, I could take 6 out leaving 9 in? I know there's something like that, that I'm supposed to do. But I'm just not sure. Please help!
Click here to see answer by checkley71(8403)

Question 98253: could someone please help me with this math problem.
18 sqrt 567 /9
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Question 98180: Simplify the radical expressions. Assume that all variables represent positive real numbers
/96
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Question 98182: Simplify the radical expressions. Assume that all variables represent positive real numbers
/48 + /147
Click here to see answer by stanbon(57246)

Question 98185: Rationalize the denominator if necessary. Then simplify each radical expression. Please help me I cant seem to understand this.

Click here to see answer by checkley71(8403)

Question 98588: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/96
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Question 98586: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/(8/25)
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Question 98582: Find the square root. Assume that all of the variables represent positive real numbers.
/25x^12 (radical)
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Question 98584: Find the cube root. of the radical
^3/512
Click here to see answer by Nate(3500)

Question 98591: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/25 + /48 + /49 + /192
Click here to see answer by checkley71(8403)

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