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

Tutors Answer Your Questions about Square-cubic-other-roots (FREE)

Question 106270: sqrt20/5 - 1/sqrt5
Simplify.
Thank you!!!!
Click here to see answer by MathLover1(6614)

Question 106269: Determine whether the following is rational or irrational:
4-sqrt16
Thank you!
Click here to see answer by stanbon(57219)

Question 106269: Determine whether the following is rational or irrational:
4-sqrt16
Thank you!
Click here to see answer by tutorcecilia(2152)

Question 106266: 11/the square root of 3-5. I know that have to multiply by the oppisite which is the square root of 3+5 but I don't know what to do from there.
Click here to see answer by stanbon(57219)

Question 106338: I am struggling with this one.
Evaluate -sqrt144 if possible.
Thanks alot!
Click here to see answer by scott8148(6628)

Question 106333: Determine whether 3sqrt121 is rational or irrational.
I would appreciate a tutor lesson. Thank you.
Click here to see answer by scott8148(6628)

Question 106335: Simplify.
sqrt75a^2
_________
sqrt5

Any chance of getting some help with this one?
Click here to see answer by stanbon(57219)

Question 106465: I am confused....
Determine whether sqrt49/100 is rational or irrational. Thank you!!!!!
Click here to see answer by Earlsdon(6287)

Question 106464: I am confused....
Determine whether sqrt49/100 is rational or irrational. Thank you!!!!!
Click here to see answer by stanbon(57219)

Question 106463: I need help with the following, please!!!
Determine whether 3sqrt-8/27 is rational or irrational
Thank you.
Click here to see answer by stanbon(57219)

Question 106745: square root of 32
Click here to see answer by jim_thompson5910(28476)

Question 107071: Hi - In a recent demonstration, somebody went from this

(square root of (1 + x-squared))/x
to this

square root of (1 + 1/x-squared)

They're both obviously equivalent, as both result in the same answer for values of x. Can you help me to understand how this manipulation was performed, and how these two forms relate? Thanks!

Click here to see answer by HyperBrain(694)

Question 107716: Alma rides her bicycle for three fourths of an hour every day. Find the distance she rides if she averages 13.65 miles per hour.
Click here to see answer by stanbon(57219)

Question 107714: The produce of x and the square of y is t.
I put (x)y^2=t is that correct?
Click here to see answer by ptaylor(2048)

Question 107714: The produce of x and the square of y is t.
I put (x)y^2=t is that correct?
Click here to see answer by solver91311(16868)

Question 107715: solving for z
-5/3z=-3/2
Click here to see answer by stanbon(57219)

Question 107715: solving for z
-5/3z=-3/2
Click here to see answer by solver91311(16868)

Question 108044: HELP!!! PLEASE!!
Solve: sqr is for square root.
7((2x-5)-(x+1))=(sqr7 +2)(sqr7 -2)
Click here to see answer by stanbon(57219)

Question 108097: (0.2 + 0.2)^2
Click here to see answer by checkley71(8403)

Question 108155: Please help me solve this equation the square root of x+6 = x+4
Click here to see answer by Fombitz(13828)

Question 108155: Please help me solve this equation the square root of x+6 = x+4
Click here to see answer by MathLover1(6614)

Question 108184: x sq + 8x =0

Click here to see answer by edjones(7569)

Question 108341: Q.
Give an example of a perfect square with a root that is Greater than 12.
I think I could use 75√ but I'm not sure, can someone help me out with this question please and thanks!!
Click here to see answer by stanbon(57219)

Question 108340: fifth root of X times the square root of X
Click here to see answer by Fombitz(13828)

Question 108456: Use Property 1 to simplify the following radical expressions. Assume that all variables represent positive real numbers.
Square root 72x^3
This is what I have. (I don't know how to make the square root sign here, so that is why it is typed out).
Square Root 72^3=Square Root 36 X Square Root 2 X Square Root of x^2 X Square Root of x.
This becomes 6 times the Sqare Root of 2 X Square Root of x^2 X Square Root x
I am not sure if I am heading in the correct direction. The textbook is very vague. Can you assist me on this?
Click here to see answer by stanbon(57219)

Question 108603: can you tell me how to solve X problems
x-3x*x
Click here to see answer by stanbon(57219)

Question 108893: please help me simplify this equation: sqrt((147)(a^20)(b^3))
Click here to see answer by edjones(7569)

Question 108856: I know this is the righ secton for my quesiton, but I don't think the area for putting your questions is good, this is factoring. how do you factor these using -difference of squares - difference of cubes - sum of cubes -or split the middle
3y cubed - 192y
24X squared + 12 y sqaured
6my - 2ab + 2am - 6by
ac+ bd + bc + ad
x to the 6th -81
49g2 - 81hto the 4th
and
4ax - 14 bq - 35by - 10 ay
thank you so much
Click here to see answer by ankor@dixie-net.com(15624)

Question 110041: Solve q=sqrt(q) + 6
Click here to see answer by HyperBrain(694)

Question 110041: Solve q=sqrt(q) + 6
Click here to see answer by edjones(7569)

Question 110037: Solve the equation (5-2x)^2 = 25 by using the Square Root Property
Click here to see answer by edjones(7569)

Question 110218: 7sqrt7x+5sqrt7x
The instruction says to "simplify". Can someone show me how to do this one?
Thank you!
Click here to see answer by stanbon(57219)

Question 110218: 7sqrt7x+5sqrt7x
The instruction says to "simplify". Can someone show me how to do this one?
Thank you!
Click here to see answer by jim_thompson5910(28476)

Question 110218: 7sqrt7x+5sqrt7x
The instruction says to "simplify". Can someone show me how to do this one?
Thank you!
Click here to see answer by josmiceli(9649)

Question 110398: solve by using the square root property.
9x^2=14
and the other problem is
(x-5)^2=7
Click here to see answer by edjones(7569)

Question 110567: Will someone please help me solve this problem?
How do I find the square root of 63?
Click here to see answer by wgunther(43)

Question 111221: can someone help
-2(cube root of -125y^3)
Click here to see answer by checkley71(8403)

Question 111663: I need help solving and check for extraneous solutions:
√y+9=1
Click here to see answer by Earlsdon(6287)

Question 111945: what is 12 x 2 square root
Click here to see answer by BrittanyM(80)

Question 112286: find all real and/or imaginary solutions: 16xSQUARED + 48x + 40 = 0
Click here to see answer by jim_thompson5910(28476)

Question 112459: WUT IS THE SQARE ROOT OF 1 OVER 49
Click here to see answer by BrittanyM(80)

Question 112525: wats da square root of 25
Click here to see answer by rapaljer(4667)

Question 112648: How do you multiply two eponential powers to the 4th root, sush as: 3 to the 4th root x 729 to the 4th root?
Click here to see answer by rapaljer(4667)

Question 113460: CAN SOME ONE HELP ME WITH THIS PROBLEM.
SOLVE ALGEBRAICALLY AND CHECK YOUR POTENTIAL SOLUTIONS
SQUAREROOT X+20-X=0
Click here to see answer by stanbon(57219)

Question 113595: CAN SOME ONE HELP ME SOLVE THIS WORD PROBLEM.

Suppose that N= square root x +3 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 in 9 years from now?
b. in approximatetly how many years will there be in 5 million cases?
Click here to see answer by checkley71(8403)

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