Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 1082098: Order the following numbers from least to greatest:
A= 2^(1/2)/(4^{1/6)
B= sqrt[12]{128}
C= ({1/(8^1/5)^2
D= sqrt{\frac{4^{-1/(2^{-1} * 8^{-1})
E= sqrt[3]{2^{1/2} * 4^{-1/4}}.
Give your answer as a list of capital letters separated by commas.
Click here to see answer by MathLover1(20850)

Question 1082126: 6x+4 and 2x+8

Click here to see answer by ikleyn(52831)

Question 1082387: 9/3(6*3/8)
Click here to see answer by Fombitz(32388)

Question 1082548: Solve for x:
3^(x+1) + 3^(x+2)=2916
I could get the answer by guessing, but I want to know the 'proper' way to solve this question. Thanks!
Click here to see answer by ikleyn(52831)

Question 1082554: If x-1/x =4, find the value of x^3-1/x^3 and x^4+1/x^4
Thank you!
Click here to see answer by Edwin McCravy(20060)

Question 1082893: Find all factors of x^3+2x^2-13x+10
Click here to see answer by MathLover1(20850)

Question 1083794:
{7(x-4y)/5} - {2(2x-7y)/3}= ?
Click here to see answer by Fombitz(32388)

Question 1084260: can you explain the reason for using brackets [ ] vs using parenthesis ( ) when you write the solution to an inequality in the interval notation or in a graph?

Click here to see answer by Alan3354(69443)

Question 1084279: Factorise: (x+x/2)^2 -2
Thanks!
Click here to see answer by ikleyn(52831)

Question 1084509: Factorise: a^2 - (c-d)^2
Click here to see answer by math_helper(2461)

Question 1084511: True or false: sin (x-180) = sin (180-x)
Could you explain this using the unit circle?
Sincerely,
Just a student trying to learn some maths
Click here to see answer by Theo(13342)

Question 1085524: I need to find the interest rate of a total loan of $1600.00 to be repaid over 3 years. if the original loan amount was $1000.00. Every time I attempt to find the rate, I get it messed up.
Click here to see answer by jim_thompson5910(35256)

Question 1086533: The remainder when x^3+ax+b when divided by (x^2-1) is x+2. Find a and b.
Click here to see answer by ikleyn(52831)

Question 1086530: If (x+(1/x))^2 = 7 and x is a positive real number, find the exact value of x^3 + 1/x^3
Thank you!
Click here to see answer by ikleyn(52831)

Question 1086562: Find all real solutions:
4^x-5(2^x)-24=0
Click here to see answer by Alan3354(69443)

Question 1086774: what is 5x-2/7-x-3/7

Click here to see answer by josgarithmetic(39623)

Question 1086888: boom
Click here to see answer by Fombitz(32388)

Question 1086904: Evaluate [f(x+h)-f(x)]/h and simplify if f(x)=2x^2 + x + 1
Click here to see answer by Boreal(15235)

Question 1086904: Evaluate [f(x+h)-f(x)]/h and simplify if f(x)=2x^2 + x + 1
Click here to see answer by Fombitz(32388)

Question 1086904: Evaluate [f(x+h)-f(x)]/h and simplify if f(x)=2x^2 + x + 1
Click here to see answer by rothauserc(4718)

Question 1087089: If f(x)= 5, find [f(x+h)-f(x)]/h
Click here to see answer by Edwin McCravy(20060)

Question 1087088: If f(x)= 2x^3 - x, find [f(x+h)-f(x)]/h
Click here to see answer by Alan3354(69443)

Question 1087244: If f(x)= 2x^3 - x, find [f(x+h)-f(x)]/h
Please, i'm stuck.
Click here to see answer by jim_thompson5910(35256)

Question 1087245: If f(x)= -2x^2 + 3, find [f(x+h)-f(x)]/h
Click here to see answer by MathLover1(20850)

Question 1087370: If x+3y=-3x+y then x^2/2y^2 is equal to
Click here to see answer by Fombitz(32388)

Question 1087370: If x+3y=-3x+y then x^2/2y^2 is equal to
Click here to see answer by ikleyn(52831)

Question 1087407: -4 (-2r - 20) = 8
blank + 80 = 8
These are the choices for blank + 80 = 8 above: Add � 4 to both sides
Subtract � 4 to both sides
Multiply both sides of -4
Divide both sides by -4
Apply the distributive property

8r =
here are the choices for 8R= Add 80 to both sides
Subtract 80 to both sides
Multiply both sides of 80
Divide both sides by 80
Apply the distributive property

R=
Add 8 to both sides
Subtract 8 to both sides
Multiply both sides of 8
Divide both sides by 8
Apply the distributive property

Click here to see answer by jorel1380(3719)

Question 1088042: the student has scores of 95, 96, and 91 on the first three tests. The student must make a total of at least 360 in order to get an A. What scores on the last test will give the student an A?

Click here to see answer by ikleyn(52831)

Question 1088277: a+b+c=180 for b
Click here to see answer by ikleyn(52831)

Question 1088278: 3ab=c; for a
Click here to see answer by ikleyn(52831)

Question 1088278: 3ab=c; for a
Click here to see answer by josgarithmetic(39623)

Question 1088613: Find the gradient of the tangent where t = 3, given x=(2t-5)(t+1)^3
Click here to see answer by Fombitz(32388)

Question 1089140: During an epidemic, the number of people who have never had the disease and who are not immune (they are susceptible) decreases exponentially according to the function f(x) = 15000e-^(0.05t) , where t is time in days. Find the number of susceptible people at each time below.
At the beginning of the epidemic
After 14 days
After 21 days
After 5 weeks
Click here to see answer by ikleyn(52831)

Question 1089483: Simplify:
10x^(7/8) divided by 5x^(1/4)
Steps please!
Click here to see answer by Fombitz(32388)

Question 1089502: A ball thrown with velocity of 28 meters per second from a cliff that is 40 meters high. h=-4.9t^2-28t+40. Find the time it takes the ball to hit the ground. Round to nearest tenth of a second?
Click here to see answer by josmiceli(19441)

Question 1089499: The length of a rectangular room is 9 feet longer than twice the width. If the room's perimeter is 210 feet, what are the rooms dimensions?
Click here to see answer by josgarithmetic(39623)

Question 1089501: If $2000.00 invested at 10% simple annual interest, how much should b invested at 12% from both so the yearly income is $5,000.00?
Click here to see answer by addingup(3677)

Question 1089495: If three times a number added to 4 is divided by the number plus 11, the result is four thirds. Find the number?
Click here to see answer by math_helper(2461)

Question 1089495: If three times a number added to 4 is divided by the number plus 11, the result is four thirds. Find the number?
Click here to see answer by rothauserc(4718)

Question 1089494: One number is 10 less than a second number. Twice the second number is 59 more than 5 times the first. Find the two numbers?
Click here to see answer by math_helper(2461)

Question 1089561: If x^2 + y^2 =2 and xy = 1, find x^2-y^2
Click here to see answer by ikleyn(52831)

Question 1089561: If x^2 + y^2 =2 and xy = 1, find x^2-y^2
Click here to see answer by Fombitz(32388)

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