# 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 Solvers Lessons Answers archive Quiz In Depth

 Question 230408: The first part is what I have to solve, and I do not no what I am doing. Especially what it says about exersice 107 I cannot solve that one either but does it have to be done in order to answer the top part of the question? HELP SOMEBODY please. I need help. I am not sure if this is a work problem or a square root problem either :( Comparing wind chills. Use the formula from Exercise 107 to determine who will feel colder: a person in Minneapolis at 10°F with a 15-mph wind or a person in Chicago at 20°F with a 25-mph wind. 107. Wind chill. The wind chill temperature W (how cold the air feels) is determined by the air temperature t and the wind velocity v. Through experimentation in Antarctica, Paul Siple developed a formula for W: W = 91.4 - (10.5+6.7sqrtv-0.45v)(457-5t)/110 (this is a fraction) where W and t are in degrees Fahrenheit and v is in miles per hour (mph). a) Find W to the nearest whole degree when t = 25°F and v = 20 mph. b) Use the accompanying graph to estimate W when t = 25°F and v = 30 mph. Click here to see answer by stanbon(57278)

 Question 230619: I need to know if there is a difference between x^3 and cubed root, I did a inverse function problem H(x)=2x^3+3 My answer was y=(x-3)^3/2=h^-1(x)-the answer given was h^-1(x)=cubed root of (x-3)/2 Is this the same? Click here to see answer by Theo(3458)

 Question 230439: 5*(-2)+((-1)^(2)-3)^(2) OK I will explain this. There is a parenthesis then a smaller one next to the first + sign. Then the (2) is a to the power 2 and so is the other (2) There I copied and pasted this and this is the way it turned out. I am wondering is all this equals -6??? Did I do it correct or still no such luck for Deb? Help. Click here to see answer by ankor@dixie-net.com(15645)

 Question 230699: (2/9)-1 The minus 1 is on the outside of the parenthesis, and the 2/9 is a fraction. It says to solve without an exponent and i need help please Click here to see answer by unlockmath(1599)

 Question 230724: How would you solve: (a) 16^1/4 (b) 25^3/2 (c) 8^-2/3 ^ stands for power of Thanks. Click here to see answer by stanbon(57278)

 Question 230730: can you tell me how to do this? (5ab^2)^2 ( c^3 ) Click here to see answer by checkley77(12569)

 Question 230854: 3 divide by cube root of x minus 4. how to get rid of cube root in denominator Click here to see answer by Alan3354(30993)

 Question 231013: Write the following expression in simplified radical form. 3sqrt(?)128 I am not even sure if I have this written correctly. The 3 is before the square root sign and the 128 is in the usual spot :) Help please. Does it mean that 3 is a whole number? Click here to see answer by rfer(12654)

 Question 231276: Helping my son with his homework. Can someone help us out. sqrt 3y^2 sqrt 15y^3 z^2 sqrt 24x^8 Thank you Click here to see answer by josmiceli(9664)
 Question 231276: Helping my son with his homework. Can someone help us out. sqrt 3y^2 sqrt 15y^3 z^2 sqrt 24x^8 Thank you Click here to see answer by texttutoring(324)

 Question 231256: Ok, these type of problems scare me to no end. Can someone please help me with a step by step explanation. Thanks 1. sqrt w-9=8 2. not sure how to write this problem but it has a 3, then the sqrt sign and inside the sqrt sign is -64. 3. this one is similar where it has 3 sqrt sign and 16 inside the sqrt. Any help with either problem is greatly appreciated. Click here to see answer by josmiceli(9664)
 Question 231256: Ok, these type of problems scare me to no end. Can someone please help me with a step by step explanation. Thanks 1. sqrt w-9=8 2. not sure how to write this problem but it has a 3, then the sqrt sign and inside the sqrt sign is -64. 3. this one is similar where it has 3 sqrt sign and 16 inside the sqrt. Any help with either problem is greatly appreciated. Click here to see answer by texttutoring(324)

 Question 231867: Explain how the graph of y= little 3 sqaure root x+2 -4 can be obtained from the graph of y= little 3 sqaure root x. A. translate 2 units to the right and 4 units up B. translate 2 units to the right and 4 units down C. translate 2 units to the left and 4 units up. D. translate 2 units to the left and 4 units down. Click here to see answer by jsmallt9(3296)

 Question 233316: how do you evaluate a square root like 7 Click here to see answer by stanbon(57278)
 Question 233316: how do you evaluate a square root like 7 Click here to see answer by Alan3354(30993)

 Question 233292: Express (2squareroot 7)cubed in the form a squareroot 7 where a is an integer. I can get answer on calculator I just don't understand how to get it. Click here to see answer by stanbon(57278)

 Question 233648: How do I simplify 2 times the square root of 300? Click here to see answer by rapaljer(4667)

 Question 233814: what is the cube root of 121? what is the cube root of 125/121 - square root of 4/729? Click here to see answer by checkley77(12569)

 Question 234151: Hello, Im completely new to this site, and Im pressing for time, but please someone help me!!! :) (2xy^3)1/5= Use radical notation to rewrite each expression. Simplify, if possible. Click here to see answer by nyc_function(2733)

 Question 234338: I am supposed to solve: sqrt with the radicand 5x +21, then = x+3. So the question is: sqrt 5x+21=x+3 Click here to see answer by checkley77(12569)
 Question 234338: I am supposed to solve: sqrt with the radicand 5x +21, then = x+3. So the question is: sqrt 5x+21=x+3 Click here to see answer by stanbon(57278)

 Question 234326: Can you help solve 3v^2 + 4v - 1 = 0 please find all solutions real and imaginary Click here to see answer by checkley77(12569)

 Question 234425: what is the 4+square root of 48 divided by 4 Click here to see answer by mando271(42)

 Question 234353: x^2 + x sqrt(x^2 + x) - 2 = 0 Find all real solutions. Please help as once again this one is getting the better of me! Click here to see answer by edjones(7569)

 Question 234726: A square picture frame is 36" on each side. The wood trim is 2" and the matting is 5". What is maximum area of the photograph ? a. 841 sq inches b. 900 sq inches c.1156 sq inches d. 484 sq inches Thanks, Emile Click here to see answer by rfer(12654)

 Question 234736: I need to simplify by factoring: sqrt 18a^2b Click here to see answer by checkley77(12569)

 Question 234881: Use rational exponents to write fourth root 2 * cube root 5 as a single radical expression. Click here to see answer by jsmallt9(3296)

 Question 234874: multiply (sqrt 6 + 1)(3*sqrt 6 + 1) Click here to see answer by jsmallt9(3296)

 Question 235092: 3 over 7 minus the square root of 2 Okay so I multiplyed by the opposite, which would be 7 plus square root of 2 on both the deonominator and top. I got 21 + 3 to the radical of 2 over 47 Did I do this right or am I totally wrong? Click here to see answer by Theo(3458)

 Question 235093: cube root of 3 to the radical of -1/8d^2f^5(cube root of three to radical of -1/8d squared f to the fifth) How do you get the cubed root of 1/8 because no number multiplied 3 times equals 1/8 so I am very lost. Please help me! Click here to see answer by solver91311(16872)