# 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 194263: I need help using the square rool property to solve the equation. 4X^2-40=0 Click here to see answer by checkley77(12569)

 Question 194302: objective function C=30x+65y with vertices (4,3), (0,5), (6,0), what is the maximum value for C? Is it 650? Click here to see answer by user_dude2008(1861)

 Question 195016: I do not understand how to put regular square root problems into the simpelest radical form. For example, if i have the Square root of 125 how do i break that down? If you could give me a step by step guide that would be so helpfull for not only this problem but others like it. Thank you. Click here to see answer by Alan3354(30983)
 Question 195016: I do not understand how to put regular square root problems into the simpelest radical form. For example, if i have the Square root of 125 how do i break that down? If you could give me a step by step guide that would be so helpfull for not only this problem but others like it. Thank you. Click here to see answer by checkley77(12569)

 Question 195119: Perform indicated operations: √[50] + 2√[32] - √[8] Click here to see answer by jim_thompson5910(28510)

 Question 195463: I really do not understand these problems please help Rewrite the following in simlified radical form 1)square root 54x^4 Simplify the following expressions as much as possible 2)6w square root63u^3-usquare root7uw^2 Rationalize the denominator and simplify 3)square root21/square root 77 Click here to see answer by jim_thompson5910(28510)

 Question 195716: Simplify square roots: i.e. Simplify the square root of 36x^4y^5 or square root of 121x^5 divided by 9 Click here to see answer by jim_thompson5910(28510)

 Question 195855: 1. cube root of (5/8) 2. sqrt of (25/x^2) 3. sqrt of (x^29) 4. sqrt of (72x^3) Click here to see answer by checkley77(12569)

 Question 196047: Hi,I desperately need help with the following questions: 1. Square root n^2 + 12n + 36 2.Simplify the rational expression: x2 – 3x – 10 _____________ x2 – x – 20 3. Divide: 2x2 + 5x – 12 ÷ 2x2 – 7x + 6 ______________ ________________ 9x2 – 16 3x2 – x – 4 4. . Simplify: √[144x^10y^12z^18] 5. Perform the indicated operations: √[50] + 2√[32] – √[8] 6. Multiply: (5√[2] + 2√[3])(√[2] – 2√[3]) 7. Rationalize the denominator: 2____ √[6] – √[5] Thanks a bunch Click here to see answer by jim_thompson5910(28510)

 Question 196060: I do not understand this word problem, can you help me? Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reached 1 for an answer? You should have. How does this number game work? (Hint: Redo the number game using a variable instead of an actual number and rewrite the problem as one rational expression). How did the number game use the skill of simplifying rational expressions? Create your own number game using the rules of algebra and post it for your classmates to solve. Be sure to think about values that may not work. State whether your number game uses the skill of simplifying rational expressions. Click here to see answer by vleith(2825)

 Question 196614: Suppose that N= √x +2 models the number of cases of an infection, in millions, of a disease x years from now. a) How many cases of the infection will there be 16 years from now? Answer: Show your work here: b) In how many years will there be 7 million cases? Answer: Show your work here: Click here to see answer by stanbon(57262)

 Question 196618: For the following function, C computes a value, where if you add millions of dollars to the value, the result is the cost of implementing a city recycling project when x , as a percent (not its decimal equivalent), citizens participate. C(x)=1.5x/100-x a) Using this model, determine the cost if 60% of the citizens participate? Answer: Show your work here: b) Using this model, find the percentage of participation that can be expected if \$5 million is spent on this recycling project? Set up an equation and solve algebraically. Round to the nearest whole percent. Click here to see answer by stanbon(57262)

 Question 196613: Show the steps that you would take to solve the following algebraically: 5-2/x-6=10-2x/x-6 Click here to see answer by christo(3)

 Question 196611: The volume of a cube is given by V = s3, where s is the length of a side. Find the length of a side of a cube if the volume is 800 cm3. Round the answer to three decimal places. Click here to see answer by Alan3354(30983)

 Question 196619: If , fill in the following table for x = 0, 1, 2, 3, 4. Round to three decimal places where necessary. x y 0 1 2 3 4 Show your work here: b) Explain why no negative values are chosen as values to substitute in for x. Answer: c) Graph in MS Excel and paste your graph here. Answer: Click here to see answer by Alan3354(30983)

 Question 196742: Suppose that N= cube-root (x) + 2x + 2 models the number of cases of an infection, in millions, of a disease x years from now. a) Approximately how many cases of the infection will there be 16 years from now? b) In approximately how many years will there be 7 million cases? Click here to see answer by vleith(2825)

 Question 196769: Hi, I need help with solving these using the square root property: Solve using the square root property: 5x2 = 100 Solve using the square root property: (x + 8)2 = 81 Click here to see answer by RAY100(1637)

 Question 197078: What is the length of a diagonal of a rectangle with a length of 8meters and a width of 6 meters? Click here to see answer by nerdybill(6951)

 Question 196091: Could someone maybe help me out with these two please: How do I use synthetic division to divide x^4+4x^3+6x^2+4x+1 by x+1? x^3-2x^2+x-3=0 what are the possible rational roots of this equation? (I dont really at all understand how to find out the rational roots here) If possible could someone also maybe check if this problem is right: If x varies inversely as y and x= 2 when y=8, find x when y=17. x= 16/17? (since I sort of doubt that it is right, although I did it as my teacher showed on the board). Click here to see answer by solver91311(16872)

 Question 197835: 1. Write the sentence (-x)2 not equal to -x2 in words. In your own words explain why (-x)2 and -x2 are not equivalent. Provide an example to support your explanation. NOTE: I cannot format the math term correctly, the 2 should be in squared format. Click here to see answer by solver91311(16872)

 Question 198097: what is the greatest 6 digit number which is a perfect square? Click here to see answer by vleith(2825)