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

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Algebra: Radicals -- complicated equations involving roots

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Question 133670: What is the square root of 18x + the square root of 8x equal? Please!
I used my best guess and guessed 5 times the square root of 2x but I know that it is wrong.
Thanks
Click here to see answer by edjones(3330)

Question 134009: Here is my problems that I am having trouble with and I had my teacher explain it to me three different times but I just don't get it. I have been working on this sheet for 4 days.I do thank you so much for any help you can give me. Thanks, in advance. Kayla
6\/20+ 8\/5-5\/45
8\/48-6\/75+7\/80
(3\/15)(-4\/45)
(\/5-\/6)(\/5+\/2)
Click here to see answer by vleith(1983)

Question 131851: Story Problem:
An isosceles right triangle with legs of length "a".
I need to write a formula in simplified radical form for the length of the hupotenuse "c" in terms of "a"
Click here to see answer by vleith(1983)

Question 134015: I messed up with the last question i submitted.
We'll say that \ax+b\ means the square root of that.
\5x+6\-2= -\3x+4\ solve for x. please help me with the steps to solving it
Click here to see answer by snwbrdfrk(10)

Question 133969: 5 cube root of 16 + cube root of 54
Click here to see answer by vleith(1983)

Question 134030: I am having trouble with this problem, can you help please? Kayla

8* sqrt 48 - 6* sqrt 75 + 7 * sqrt 80
Click here to see answer by checkley71(8405)

Question 134104: How can you simplify radicals?
Click here to see answer by solver91311(5106)

Question 134290: 8 radical 5 + 3 radical 5
Click here to see answer by jim_thompson5910(13811)

Question 134294: radical 18 + radical 12 + radical 8
Click here to see answer by jim_thompson5910(13811)

Question 134295: 3 radical 7 - 2 radical 28
Click here to see answer by jim_thompson5910(13811)

Question 134293: 8 radical 3 - 2 radical 2 + 3 radical 2 + 5 radical 3
Click here to see answer by jim_thompson5910(13811)

Question 134299: - radical 196x^2 y^3
Click here to see answer by jim_thompson5910(13811)

Question 134291: 2 radical 15 - 6 radical 15 - 3 radical 15
Click here to see answer by jim_thompson5910(13811)

Question 134292: 16 radical x + 2 radical x
Click here to see answer by jim_thompson5910(13811)

Question 134298: ( radical 6 + radical 8) ( radical 24 + radical 2)
Click here to see answer by scott8148(3400)

Question 134307: (3 + radical 5) (3 - radical 5)
Click here to see answer by edjones(3330)

Question 134459: simplify 1/2 of the square root 28 and the squareroot of 4000x squared y
Click here to see answer by stanbon(26367)

Question 134532: How would you solve the problem i^7+i^2+i^12+i^9 over (1-i)^2?
Click here to see answer by Earlsdon(4900)

Question 134532: How would you solve the problem i^7+i^2+i^12+i^9 over (1-i)^2?
Click here to see answer by josmiceli(3021)

Question 134560: Solve the equation w=Cr-2 for r where w is the weight of an object, C is a constant and r is the distance that the object is from the center of the earth.
Click here to see answer by stanbon(26367)

Question 134599: Hi, today in class i recieved a work sheet with 26 problems on it. The teacher was not there so we had a sub. The sub. did not teach us how to solve the problems. If you could help me on this one and explain it i would really appreciate it.
square root of 5 times the square root of 10.
Thankyou.
Click here to see answer by vleith(1983)

Question 134587: ( radical 2 + radical 3) ( radical 3 + radical 2)
Click here to see answer by vleith(1983)

Question 134577: 8 radical 32 + 4 radical 50
Click here to see answer by vleith(1983)

Question 134607This question is from textbook Algebra 1
: x-9 = the square root of x-3This question is from textbook Algebra 1

Click here to see answer by solver91311(5106)

Question 134607This question is from textbook Algebra 1
: x-9 = the square root of x-3This question is from textbook Algebra 1

Click here to see answer by vleith(1983)

Question 134559: Solve the equation w=Cr-2 for r where C is a constant and r is the distance that the object is from the center of the earth.
Click here to see answer by vleith(1983)

Question 134661This question is from textbook Introductory & Intermediate Algebra for College Students

: sqrt6(4sqrt6-3sqrt2)Please help!This question is from textbook Introductory & Intermediate Algebra for College Students

Click here to see answer by stanbon(26367)

Question 134654: How would you express this radical in simplified form?
the square root of 4/25x^3
Click here to see answer by stanbon(26367)

Question 134653: Please tell me how you would express this radical in simplified form:
the square root of 72x^2
Click here to see answer by stanbon(26367)

Question 134652: Please help me simplify this expression:
the square root of x^2
Click here to see answer by edjones(3330)

Question 134716: I am having so much trouble with this question. I will show you the original question and then will show what I have. Please complete the problem for me from start to finish so that I am no longer as confused as I am now. This is what I have:
(3x)^-1/3=
3^-1/3 * x^-1/3=
1/3^1/3 * 1/x^-1/3=
3^1/3= 3cubert3=
1/3cubert3x
I am not allowed to leave radicals in the denominator, I am completely confused, can you please solve the original? The original problem again is (3x)^-1/3

Click here to see answer by stanbon(26367)

Question 134586: (square root 2 + 5)^2
Click here to see answer by vleith(1983)

Question 134578:
2 radical 63 - 6 radical 28 + 8 radical 45
Click here to see answer by checkley77(7172)

Question 134864: simplify: 3 radical x^4y^5 times radical xy
Click here to see answer by nycsharkman(136)

Question 134863: add and simplify:

radical x^5y^2 + radical 36xy^4
Click here to see answer by checkley77(7172)

Question 134903: 1. Find the distance between M(2, -1) and N(-4, 3) to the nearest tenth.
2. Find the distance between P(-2.5, 3.5) and R(-7.5, 8.5) to the nearest tenth.

Click here to see answer by nycsharkman(136)

Question 134862: multiply and simplify:
(
4 - 3 radical 2) (5 + 2 radical 2)

Click here to see answer by checkley77(7172)

Question 135223: Mutiply and simplify:
(4-3 square root 2) (5+2 square root 2)
Click here to see answer by stanbon(26367)

Question 135225: One leg of an isosceles right triangle measures 12 feet. Find the exact length of the hypotenuse.
Click here to see answer by stanbon(26367)

Question 135224: Rationalize the denominator:
8 - radical 2 divided by 6 - 3 square root 2
Click here to see answer by solver91311(5106)

Question 135290: This is the question I'm having problems with...
Suppose P dollars in principal is invested in an account that earns interest annually. If after t years the investment grows to A dollars, then the annual rate of return, r, on the investment is given by
r = A/P^1/t -1
Find the annual rate of return on $7,000 which grew to $12,200 after 5 years.
Round your answer to one decimal place.
I filled in the equation with:
r= 12200/7000^1/5 -1
I cancelled out the zeros to get r=122/70^1/5 -1
I'm unsure where to go from here. Thanks.
Click here to see answer by vleith(1983)

Question 135302: Please show me how to solve this equation. w= Cr-2 for r. C is the constant and r is the distance that the object is from the center of the earth. 100 pounds when at sea level 3,963 miles from the center of the earth. this is not from a textbook it was an appendix assignment from intermidiate algebra class 117.
Click here to see answer by vleith(1983)

Question 135222: simplify:

3 square root b^2 divided by 4 square root b^3
Click here to see answer by checkley77(7172)

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