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

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 Algebra: Radicals -- complicated equations involving roots Solvers Lessons Answers archive Quiz In Depth

 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(2825)

 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(2825)

 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(2825)

 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(8403)

 Question 134459: simplify 1/2 of the square root 28 and the squareroot of 4000x squared y Click here to see answer by stanbon(57347)

 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(6287)
 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(9678)

 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(57347)

 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(2825)

 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(2825)

 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(57347)

 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(57347)
 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 vleith(2825)

 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 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 solver91311(16885)

 Question 135223: Mutiply and simplify: (4-3 square root 2) (5+2 square root 2) Click here to see answer by stanbon(57347)

 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(57347)

 Question 135224: Rationalize the denominator: 8 - radical 2 divided by 6 - 3 square root 2 Click here to see answer by solver91311(16885)

 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(2825)

 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(2825)

 Question 135222: simplify: 3 square root b^2 divided by 4 square root b^3 Click here to see answer by checkley77(12569)