# Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

Algebra ->  Algebra  -> Functions -> Questions on Algebra: Functions, Domain, NOT graphing 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: Functions, Domain, NOT graphing Solvers Lessons Answers archive Quiz In Depth

 Question 63456: Find the length of each side of the rectangle so that it has the given perimeter. 2x-5 x P=50 inches Click here to see answer by checkley71(8403)

 Question 63642: Solve. 8x – 11 = 2x + 1 Click here to see answer by joyofmath(189)

 Question 63641: One number is 6 more than another. If the sum of the smaller number and 3 times the larger number is 34, find the two numbers. Click here to see answer by joyofmath(189)

 Question 63700: 4(7x + 10) = 3(9x – 5) + 20 Click here to see answer by checkley71(8403)

 Question 63697: Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo? Click here to see answer by checkley71(8403)

 Question 63699: Which label describes the following? 3x + 6 = 10 Expression Linear equation Equation which is not linear Click here to see answer by praseenakos@yahoo.com(507)

 Question 63959: calculate the first derivative f'(x) for each of the following. Express your final answers using positive exponents A. f(x)= 5/6x^3/4 + 5/6x^3/2 + 2/5x^3/2 B. f(x)=3/2x^3/2 + 3/2x^3/4 + 3/2x^2/3 C.f(x)= 5/6x^3/4 + 5/6x^3/2 I NEED HELP WITH THESE PROBLEMS...I WOULD APPRECIATE THE HELP..I'VE TRIED TO DO THEM BUT IT DOESN'T COME OUT RIGHT... Click here to see answer by funmath(2925)

 Question 63961: determine the critical numbers and the critical points for each of the following functions A. f(x)= x^3 + 13x^2 + 7x - 165 B. g(x)= X^3 +6x^2 - 13x - 42 C. h(x)= x^3-10x^2 + 7x + 18 THESE PROBLEMS ARE TOUGH....I REALLY NEED HELP WITH THEM...I TRIED DOING THEM BUT THE ANSWERS AREN'T RIGHT BECAUSE I KNOW THERE ARE SUPPOSED TO BE 2 ANSWERS 4 EACH BUT IM NOT SURE HOW TO GET THE SECOND NUMBER...PLEASE HELP...THANK YOU Click here to see answer by funmath(2925)

 Question 64007: Thanks for your continued help. Can you Solve the following 2 equation: x^2e^x-5xe^x=0 5^3x=5^4x-2 Click here to see answer by stanbon(57226)

 Question 64054: When x number of units are sold, the price of each unit (in dollars) is given by P=-x/2+75. Find the unit price when the following quantities are sold: 2, 7, 9, 11. Click here to see answer by checkley71(8403)

 Question 64053: Science and medicine. Celsius temperature readings can be converted to Fahrenheit readings using the formula E=9/5C+32. What is the Fahrenheit temperature that corresponds to each of the following Celsius temperatures: -10, 0, 15, 100? Click here to see answer by checkley71(8403)
 Question 64053: Science and medicine. Celsius temperature readings can be converted to Fahrenheit readings using the formula E=9/5C+32. What is the Fahrenheit temperature that corresponds to each of the following Celsius temperatures: -10, 0, 15, 100? Click here to see answer by sarahschober(35)

 Question 64024: I need your help and I do appreciate it Thanks Expand the following expression: log3 P^3 / R Click here to see answer by stanbon(57226)
 Question 64024: I need your help and I do appreciate it Thanks Expand the following expression: log3 P^3 / R Click here to see answer by jai_kos(139)

 Question 64019: Can you help me please? 8. Rewrite in exponential form: log2 32 = x 9. Write in logarithmic form: M = tp Click here to see answer by jai_kos(139)

 Question 64095: what would be the domain of this equation: The square root of 9-4x. All is included under the radical! thanks Click here to see answer by Edwin McCravy(8880)
 Question 64095: what would be the domain of this equation: The square root of 9-4x. All is included under the radical! thanks Click here to see answer by venugopalramana(3286)

 Question 64049: 3x + 4y = 12 (0, ),( ,3/4),( ,0),(8/3, ) Click here to see answer by funmath(2925)

 Question 63979: Work backward to solve. Manuel's term paper is due on MArch 31. He began doing reasearch on March 1. He intends to continue doing reasearch for 3 times as long as he has done already. Then he will spend a week writing the paper and the remaining 3 days typing. What day is it? Click here to see answer by 303795(595)

 Question 64194: Please help me with these problems, Expand the following expression: log3 P^3/R and find X: log3 27=x find x: log3 27=xlogb x= 3logb 2+1/2 logb 25-logb 20 thank you Click here to see answer by tanimachatterjee(60)

 Question 64222: i have a take home test and i need help with but it isnt in any of the books pages can you still help me? Click here to see answer by stanbon(57226)

 Question 64254: if f(x) = 2x^2 (^2 means squared) then find f(2) and f(4c) Click here to see answer by praseenakos@yahoo.com(507)

 Question 64252: I cant seem to find the answer to this math problem... let along try to solve it. the question is: if f(x) = 3x^2(squared) then find f(4) and f(3b) Click here to see answer by praseenakos@yahoo.com(507)

 Question 64272: The cost of producing a number of items x is given by C = mx = b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a) If the fixed cost is \$40 and the variable cost is \$10, write the cost equation. (b) Graph the cost equation. Click here to see answer by funmath(2925)

 Question 64280: The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spent \$2000 a month on advertising, the revenue was \$120,000. If the revenue is now \$180,000, how much is the owner spending on advertising? Click here to see answer by checkley71(8403)

 Question 64275: Find the slope of the line through the following pairs of points. (-5, -3) and (-5, 2) Click here to see answer by checkley71(8403)

 Question 64279: find the constant of variation k. m varies directly with n; m - 144 when n = 8. Click here to see answer by funmath(2925)

 Question 64318: I am suppose to solve the following system but don't know how. -2x+2y+3z=-7 (1) x-2y-2z=4 (2) Click here to see answer by 303795(595)

 Question 64316: I am not sure where to put my question so I hope this is ok. Solve the following system of equations by elimination. 6x-9y=7 (1) -4x+6y=10 (2) Click here to see answer by 303795(595)

 Question 64317: I have no clue where to begin on this question. Solve the following system. 3x+2y-2z=12 2x+2y-3z=-6 -x-2y+4z=8 Click here to see answer by venugopalramana(3286)