# Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!

Algebra ->  Algebra  -> Square-cubic-other-roots -> Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Square root, cubic root, N-th root Solvers Lessons Answers archive Quiz In Depth

 Question 442571: Find the square root. Assume that all variables are unrestricted, and use absolute value symbols if necessary sqrt (a^2+2a+1) Click here to see answer by swincher4391(726)

 Question 442570: Find the square root. Assume that all variables are unrestricted, and use absolute value symbols if necessary 9 sqrt (-x^9) Click here to see answer by swincher4391(726)

 Question 443238: two investments are made totaling \$10,000. In one year these investments yield \$650 in simple interest. Part of the \$10,000 in invested at 5 1/2%, and the rest at 6 3/4%. How much more money is invested at 6 3/4%? Click here to see answer by stanbon(57984)

 Question 443236: find the point (x,y) which satisfies both equations. What is the value of x + y? -2x + 4y = 12 3x - 5y = -3 Click here to see answer by ankor@dixie-net.com(15747)

 Question 443721: Cubed root of 40 + 2 * cubed root of 135 - 5 * cubed root 320 Click here to see answer by edjones(7569)

 Question 444596: the question that i am asked is solve : so far i did was :, next i subtracted 25-9, i got then i got stuck so if you may please help me and explain it will be a great deal of help Click here to see answer by stanbon(57984)
 Question 444596: the question that i am asked is solve : so far i did was :, next i subtracted 25-9, i got then i got stuck so if you may please help me and explain it will be a great deal of help Click here to see answer by oberobic(2304)

 Question 445479: what is the sum of 4 times the square root of 12 and 2 times the square root of 27 in simplest form Click here to see answer by jorel1380(2518)

 Question 445848: 4x to the power of 5 times 8x to the power of 2 Click here to see answer by unlockmath(1614)

 Question 446281: square root of 40 x squared times the square root of 10 x Click here to see answer by stanbon(57984)

 Question 446291: f(x) = 2x² + x - 5 replace x with 3 Can someone tell me do we multiply 2 by 3 first or after square root? Thank you Click here to see answer by nerdybill(7011)

 Question 446330: Kevin invested money in a saving account at a rate of 5% simple interest. After one year he has 4032.00 in the account. How much did kevin originally interst? Click here to see answer by josmiceli(9819)
 Question 446330: Kevin invested money in a saving account at a rate of 5% simple interest. After one year he has 4032.00 in the account. How much did kevin originally interst? Click here to see answer by rfer(12731)

 Question 446329: The wavelenght w in meter per cycle, of musical note is given by w=r/f' where r is the speed of the sound in meters per second and f is the frequency in cycles per second. The speed of sound in air is 344m/second. What is the wavelenght of a note whose frequency in air 30 cycles per second? Round to the nearest tenth of a meter per cycle. Click here to see answer by rfer(12731)

 Question 446333: The equation = 0.002x - 0.10 can be used to determine the approximate profit, y in dollars, of produced x items. How many items must be produced so the profit will be at least \$4031. Click here to see answer by rfer(12731)

 Question 446256: some students of school can be arranged into 12,15 and18 equal rows and also into a sollid square what is the least number of students in school? Click here to see answer by jorel1380(2518)

 Question 446475: hey my name is farah i want help in my homework i want to know how can you solve those square root cubic y^3-64 and 1000x^3-27 Click here to see answer by Gogonati(817)
 Question 446475: hey my name is farah i want help in my homework i want to know how can you solve those square root cubic y^3-64 and 1000x^3-27 Click here to see answer by chriswen(106)

 Question 447213: Solve the equation by the square root property (x+7)^2=81. I don't know which number goes where. Thanks Click here to see answer by jorel1380(2518)
 Question 447213: Solve the equation by the square root property (x+7)^2=81. I don't know which number goes where. Thanks Click here to see answer by richard1234(5390)

 Question 448360: Which of the following equations could be used to find the nth term in the arithmetic sequence 14, 8, 2, -4, . . .? A) an=14-8(n-1) B) an=14+(n-1)6 C) an=14-6(n-1) D) an=14-6+8(n-1) (The n's are supposed to be small and below the a's. Like an exponent but on the bottom.) Click here to see answer by jim_thompson5910(28717)
 Question 448360: Which of the following equations could be used to find the nth term in the arithmetic sequence 14, 8, 2, -4, . . .? A) an=14-8(n-1) B) an=14+(n-1)6 C) an=14-6(n-1) D) an=14-6+8(n-1) (The n's are supposed to be small and below the a's. Like an exponent but on the bottom.) Click here to see answer by stanbon(57984)

 Question 448589: I have a problem here, r^-2 = wC^-1, r=distance, w=weight, C=constant. Apparently we can use 1 mile = 5,280 feet for your conversions. I need to work this out for "r" first then "C" then "w". Can you help me? This is the entire question off the appendix. Hint for this assignment: Pay attention to the units of measure. You may have to convert from feet to miles in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , 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 stanbon(57984)

 Question 448755: I'm suppose to solve: x=square root of (4x-21) Click here to see answer by jorel1380(2518)

 Question 449245: How to I compute m squred equals 11 m? I know I need to find the value of m but where do I start? Click here to see answer by richard1234(5390)

 Question 449726: square root of (2x+3) = x I got x = -1, 3 but my answer sheet says only x = 3 WHY? Click here to see answer by Leaf W.(97)

 Question 449824: the search for a missing boat covered a circular region with an area of 164km^2. what was the radius of the search region? Click here to see answer by ankor@dixie-net.com(15747)

 Question 450076: I'm not sure this belongs here but... For the functions f(x)= sqrt 12x and g(x)= sqrt 3x. Evaluate each expression 1. (f+g)(3) 2. (f-g)(x) 3. (fg)(x) 4. (f/g)(x) Thanks, I'm completely in the dark on this one. Click here to see answer by jim_thompson5910(28717)