# 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 474205: The gravitational force between two lagre space ships in space may be expressed as Fg = Gr^-2 solve the equation Fg = Gr^-2 for r Click here to see answer by stanbon(57346)

 Question 474244: simplify 5V-1/32 the V represents the square root symbol and this is a fraction. The 5 is suppose to be in the indentation of the root, not right on the side of it. Click here to see answer by ankor@dixie-net.com(15652)

 Question 474326: 2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a) Solve this equation for h (6 pts) . b) Mammoth Mountain is 11,059 feet in elevation. How far can you see to the horizon from the top of Mammoth Mountain Click here to see answer by richard1234(5390)

 Question 474691: Are each of the statements below true or false? Explain your answer. √a + √b = √(a+b). Explain why. The numerator and denominator of the following must be multiplied by √3 to rationalize 3 -----------. Explain why. 3 + √3 Click here to see answer by richard1234(5390)

 Question 475007: solve V5x+21 =x+3 the V is suppose to be the square root symbol, the 5x+21 in under the entire root Click here to see answer by mananth(12270)

 Question 475170: Find the following. Assume that variables can represent any real number. sqrt(a+1)^2= ___ Click here to see answer by MathLover1(6632)

 Question 475520: subtract. Simplify by collecting like radical terms if possible 3V75 - 6V3 the V's represent square root symbols Click here to see answer by jorel1380(2518)

 Question 475512: use rational exponents to write x^1/9 times y^1/6 times z^1/3 as a single radical expression ^means raising to that power and the 1/9 and so on are fractions Click here to see answer by stanbon(57346)

 Question 475737: Darla is building a new desk. To make sure she had made a square corner she measures 9ft from the corner along one edge and 3ft from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle? Click here to see answer by Alan3354(30993)

 Question 475741: Can you please show me the steps to solve the following: (5+√13)(5-√13) Thank you! Click here to see answer by Alan3354(30993)

 Question 475769: Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represent positive numbers. 3V 8x^5/y^3 ^means raising to that power the V is suppose to be a square root symbol and the 3 is suppose to be in the indentation of the square root, not directly on the side of it. This is a fraction inside the root; 8x^5 on top and y^3 on bottom Click here to see answer by ankor@dixie-net.com(15652)

 Question 475777: simplify by factoring; assume that all expressions under radicals represent nonnegative numbers. V50a^2b ^means raising to that power and the V is suppose to be a square root symbol Click here to see answer by ewatrrr(10682)

 Question 475772: Rewrite with a rational exponent 4V20 the V is suppose to be the square root symbol and the 5 is suppose to be in the indentation of the symbol, not directly to the side of it Click here to see answer by Alan3354(30993)

 Question 476050: Can you please tell me how to solve the following equation: (3√3-8)^2 Thank you! Click here to see answer by Alan3354(30993)

 Question 476054: Can you please show me the steps to solve √4x-1 +6 =9 (the 4x-1 is under the radicand. Thanks! Click here to see answer by Alan3354(30993)
 Question 476054: Can you please show me the steps to solve √4x-1 +6 =9 (the 4x-1 is under the radicand. Thanks! Click here to see answer by Tatiana_Stebko(1326)
 Question 476054: Can you please show me the steps to solve √4x-1 +6 =9 (the 4x-1 is under the radicand. Thanks! Click here to see answer by lwsshak3(6505)

 Question 476227: sgrt(x+5)+sqrt(x-3)=4 I've tried and tried this, and just don't know how to get x. The answer is 4, but I don't know how to get there Click here to see answer by lwsshak3(6505)

 Question 476324: simplify 5sqrt -1/32. Sorry not sure how to write this using the sqrt sign. The 5 is on top of the v shape of the sqrt sign. Hope this makes since. Thanks Click here to see answer by Theo(3464)

 Question 476488: Please help me to solve: Why is the solution to the 6th root of 15 + the 4th root of 8 not equal to the 10th root of 23 Click here to see answer by jim_thompson5910(28595)

 Question 476276: Can you please help me solve this story problem. A ball is thrown downward from a window in a tall building. It's position at time t in seconds is s=16t^2+32t, where s is in feet. How long (to the nearest tenth) will it take the ball to fall 217 feet? I took 217=16t^2+32t = -217 = 16t^2+32t-217=0 I did a=16, b=32, and c= -217. I used the formula -b+-√b^2-4ac/2a I got -32+-√14,912/32. I'm lost from that point on to get the answer. I have the answer key it says it's 2.8 seconds. Can you help me complete this? Thanks. Click here to see answer by scott8148(6628)
 Question 476276: Can you please help me solve this story problem. A ball is thrown downward from a window in a tall building. It's position at time t in seconds is s=16t^2+32t, where s is in feet. How long (to the nearest tenth) will it take the ball to fall 217 feet? I took 217=16t^2+32t = -217 = 16t^2+32t-217=0 I did a=16, b=32, and c= -217. I used the formula -b+-√b^2-4ac/2a I got -32+-√14,912/32. I'm lost from that point on to get the answer. I have the answer key it says it's 2.8 seconds. Can you help me complete this? Thanks. Click here to see answer by bucky(2189)

 Question 476648: Explain how you would find the exact value of 3/sqrt8. Click here to see answer by MathLover1(6632)

 Question 476669: Multiply.(3 + square root 7)(3-Square root 7) I am trying to solve this but am unsure how to start? Click here to see answer by solver91311(16885)