Tutors Answer Your Questions about Radicals (FREE)
Question 51085: I have been away from school the past few days because i was sick, and i am really not understanding these questions. i am also not sure if this is the right section to be asking this question in, but nothing else seemed to fit
(x^2-64)/(5x) * (10x^2)/(x+8)
1. what i thought to do is factor the denomanator so it would be (x+8)(x-8)/(5x) * (10x^2)/(x+8) then the two x + 8's cancel out....once u have the final answer as (x-8)/(5x) * (10x^2)/1---do u just multiply?? and how do u multiply??
Click here to see answer by Earlsdon(6294)  |
Question 51362: How do I "simplify" The square root of 1/32? (that is 1/32 inside the radical.)
I have a complicated question and can get so far but I forget how to do this step. The problem starts as 4x^2+x-1/16=0 I'm suppose to use the "complete the square method" HELP!!
Click here to see answer by THANApHD(104)  |
Question 51362: How do I "simplify" The square root of 1/32? (that is 1/32 inside the radical.)
I have a complicated question and can get so far but I forget how to do this step. The problem starts as 4x^2+x-1/16=0 I'm suppose to use the "complete the square method" HELP!!
Click here to see answer by stanbon(75887) |
Question 51621: im sorry i dont know how to make a radical sign, but the question is to simplify 100 over 9, its under the radical sign
and another one thats 19 over and then a radical sign and a 19 under that sign, sorry if im confusing, maybe someone can show me how to make a radical sign...thanks for any help
Click here to see answer by checkley71(8403) |
Question 51600: 2√ [48] + √[27] - 5√[12]
I first looked at 2√[48]which tells me it's the square root of 48 so I then broke 48 down into factors.
48 = 2 * 2 * 2 * 2 * 3
I took out 2 * 2 = 4 and left 3 under the radical sign 4√[3]
I the did the same for √[27] following the same steps and I got 3√[3]. where my problem comes in is when I get to 5√[12] how do I break this down. I also wanted to know am I doing this correctly. PLease point me in the right direction. I am having troubles seeing how to break these down.
Click here to see answer by checkley71(8403) |
Question 51696: Hi,
I've been working on this problem for a while, and am still getting an answer than doesn't work when I check/proof it. Here's how I've been trying to solve it:
5(3 - 2x) = 4(4x + 20) or
15 - 10x = 16x + 80 or
-65 = 26x or
x = -65/26
and then to proof
5(3 - 2(-65/26)) = 4(4-65/26)+ 20) or
5(78/26 - 130/26) = 4(260/26 + 520/26) or
-260/26 = 3120
The problem is:
"5(3 - 2x) = 4(4x + 20)"
It looks so simple... what am I doing wrong?
Thanks,
~ Jasmine
Click here to see answer by tutorcecilia(2152)  |
Question 52262: The volume of a cube is given by V= s to the 3rd power . Find the length of a side of a cube if the Volume is 729 cm to the 3rd power.
Answer:
Show work in this space.
This problem has me baffled as well.
Click here to see answer by funmath(2933) |
Question 52261: For the function,
y= 1
______
x - 1
a) Give the y values for x = -2,-1,0,1,2,3
Answer:
x_______ __________ _____________ ________ ________
y_______ __________ _____________ ________ ________ (this is supposed to a table)
Show work in this space:
I have no clue how to even go about finding the answer for this, this is very confusing to me.
Click here to see answer by Earlsdon(6294) |
Question 52471: This is my first time here not sure I picked the correct topic but here it is the question that my online Contemporary Math Professor gave us for our Discussion Board.
While the radical symbol is widely used, converting to rational exponents has advantages. Explain an advantage of rational exponents over the radical sign. Include in your answer an example of an equation easier to solve as a rational exponent rather then a radical sign.
Thank you for you help.
Lisa
Click here to see answer by darq(90)  |
Question 52494: x-sqrt of x=0
solve all the values for x
a right triangle is a triangle with one angle measuring 90 deg. In a right triangle,the sides are related by pythagorean Therom, c to the second =a to the second +b to the second where c is the hypotenuse find the hypoteneuse when the other two sides measurements are 3ft and 4ft please show work and explain.
Click here to see answer by Nate(3500) |
Question 52524: My problem is: 3p^3/2 + 9p^1/2 + 6p^-1/2
I think you add the exponents 3/2+1/2-1/2 which equals 3/2
Then add 3p + 9p + 6p which equals 18p
18p^3/2 = sq root of 18p raised to the 3rd power
I broke it down to(3*sq root of 2) raised to the 3rd power. I hope i am typing this right. Please help from here.
Thanks Stacie
Click here to see answer by Earlsdon(6294) |
Question 52991: 1) An open-top box is to be constructed from a 6 by 8 foot rectangular cardboard by cutting out equal squares at each corner and the folding up the flaps. Let x denote the length of each side of the square to be cut out.
a) Find the function V that represents the volume of the box in terms of x.
Answer
b) Graph this function and show the graph over the valid range of the variable x..
Show Graph here
c) Using the graph, what is the value of x that will produce the maximum volume?
Answer
Click here to see answer by venugopalramana(3286) |
Question 53082: square root of x+1 + square root of x-1 = square root of 2x+1
Please help....if you can break it down to the simplest my book does not explain how to work with one that involves three radicals. Thank you so much
Click here to see answer by funmath(2933) |
Question 53340: 
if y= 0
and x=a
Find the value of a giving your answer as a multiple of 
the answer it gives is 
i keep trying this problem but cant get anywhere near the answer it gives, and cant see where im going wrong.
i keep getting
 or 
can you help?
Click here to see answer by Earlsdon(6294) |
Question 53382: While the radical symbol is widely used, converting to rational exponents has advantages. Explain an advantage of rational exponents over the radical sign. Include in your answer an example of an equation easier to solve as a rational exponent rather then a radical sign.
Click here to see answer by rapaljer(4671)  |
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