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

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Question 133322: how would you solve for x in this equation:
3x + xSR3 = 3 + 3SR3
I'm studying for the GMAT and one practice book had this question but didn't give anything but the solution (x=SR3) and it has been bugging me something terrible.
Thanks.

Click here to see answer by Edwin McCravy(20056) About Me 

Question 133794: Can you verify my answer please?
Multiply
√7(2√3+3√7)
I got 2√21+21 is this correct?
Thanks for your help!

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Question 133800: Can you verify my answer please?
Find the area of the rectangle that has these sides √3+√5 and √3+√5
I got 8 + √15 is this correct?
Thanks

Click here to see answer by scott8148(6628) About Me 

Question 133945: I need help with my homework that involves radicals. I am having a little bit of trouble and I tried but it is not making any sense. Here is the question: 24/ (radical) 6. How can I simplify it and get an answer. I am really confused. Help me please!
Click here to see answer by Earlsdon(6294) About Me 

Question 134230: find the exact length of the side of a square which has a diagonal of 100 ft.


The hypotenuse of a right triangle measures 100 inches, and one leg measures 50 inches. find the measure of the other leg.
a) give its length in simplified radical form.
b) Round the answer to the nearest thousandth.
I dont like word problems could you help me?
Thank U :)

Click here to see answer by algebrapro18(249) About Me 

Question 134442: I'm looking for the name of a theorem, and the completion of the theorem. I've been searching the internet and my algebra books, but can't locate the theorem. The question marks is what I need to fill in. If you know the theorem, I can look it up to complete the statement.

The ? Theorem states if p and q are real numbers and if p^2 = q^2, then ?
The ? Theorem states if p and q are real numbers and if p * q = 0, then ?

Thanks!

Click here to see answer by Edwin McCravy(20056) About Me 

Question 134803: please help me with this equation:
what is the square roots of 800, 216, 7 radical 27?

Click here to see answer by vleith(2983) About Me 

Question 134805: please help me with these problems:
what is the square roots of 128 and 80?

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Question 135647: Simplify
square root t^5 times square root 10t^4

Click here to see answer by checkley77(12844) About Me 

Question 135768: 7 - Square Root of -9?
I need help expressing it in terms of "i".

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Question 135771:
(b 5 ) 2/5
both 5 and 2/5 are exponents. I would like to double check my answer.

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Question 135765: (5-4i)+(9+8i)
I need to know how to write the result in a+bi form. "i" always confuses me.
thank you

Click here to see answer by stanbon(75887) About Me 

Question 135794: y^3/4
_____
y^1/4

Simplify...

I keep forgetting the first step, any idea?

Click here to see answer by stanbon(75887) About Me 

Question 135793: I need help factoring out this problem:
Factor out the requested common factor 2x from 10x^9/5 + 6x^8/5
thanks!

Click here to see answer by stanbon(75887) About Me 

Question 135799: 8
_____
2+i
I know I need to divide this. The i always throws me off. is it 4 + i?


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Question 135964: The volume of a cube is given by V = s3, where s is the length of a side. Find the length of a side of a cube if the volume is 700 in3. Round the answer to three decimal places.
Click here to see answer by checkley77(12844) About Me 

Question 135963: solving for t
t=2/3 = 4

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Question 136225: I need to figure out how to set these up. Thank you
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: w=Cr^-2 , where C is a constant, and r is the distance that the object is from the center of the earth.
a.Solve the equation w=Cr^-2 for r.
b.Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth.)
c.Use the value of C you found in the previous question to determine how much the object would weigh in
i. Death Valley (282 feet below sea level)
ii. The top of Mt McKinley (20,430 feet above sea level)

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Question 136214: I have tried and i thought that you would lug in 6 for x. but for some reason that doesnt seem right to me. can you please help me.
Suppose that N=square root 16+4 models the number of cases of an infection, in millions, of a disease x years from now.
In approximately how many years will there be 6 million cases?

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Question 136279: Please help me solve this using the square root property:
x^2=196

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Question 136280: Please help me solve this using the square root property:
(a+10)^2=11

Click here to see answer by stanbon(75887) About Me 

Question 136382: PLEASE HELP WITH THIS PROBLEM FROM BLITZER 4 COLLEGE ALGEBRA.
(1) suppose that N = sqrt x+4 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 16 years from now?
(b) in approximately how many years will there be 6 million cases?

Click here to see answer by solver91311(24713) About Me 

Question 136423: (3+square root of 5)squared=(3+square root 5)(3+square root 5)
=3^2+3 square root 5+3 square root 5+(square root 5)^2
=9+6 square root 5+5
=15+6 square root 5

Click here to see answer by tns_tutor5000(9) About Me 

Question 136464: Could someone please help me with my homework, I just dont get it. I have 2 word problems and 2 other problems.
1. find the exact length of the side of a square which has a diagonal of 100 feet.
2. The hypotenuse of a right triangle measures 100 inches, and one leg measures 50 inches. Find the measure of the other leg.
a. give its length in simplified radical form.
b. Round the answer to the nearest thousandth.
3. 10 the square root of 250x - 10 the square root of 160x + 6 the square root of 10x
4.(the square root of x - 9) ( the square root of x + 9)

Click here to see answer by stanbon(75887) About Me 

Question 136424: (3+square root of 5)squared
Click here to see answer by checkley77(12844) About Me 

Question 136407: Please help me solve this equation using the square root property:
(2x+5)^2=100

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Question 136405: Please help me solve this equation using the square root property:
(2x+5)^2=100

Click here to see answer by checkley77(12844) About Me 

Question 136533: Could someone please help me with this question I am lost.
The equation D=1.2 squareroot h give the distance, D, in miles that a person can see to the horizon from a height, h, in feet
a. Solve this equation for h,
b. Long's Peak in the Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from the top of Long's Peak? Can you see Cheyenne, Wyoming (about 89 miles away)? Explain your answer.
Thanks,
MT

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 136662: what is the square root of 27
Click here to see answer by smartcookie(2) About Me 

Question 137209: i have been trying to solve the following problem, but have not been successful at doing so. I need help!!! Please
square root of 6 divided by 4 nth root of 36. Thanks

Click here to see answer by vleith(2983) About Me 

Question 137329: The square root of 5x+21=x+3...what is x and how did you figure it out?
Click here to see answer by Fombitz(32388) About Me 

Question 137401: square root of b to the sixth power
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Question 137728: simplify the square root or 48 over the square root of 3
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Question 137784: Square root of 2x-3=3-x
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Question 137870: a bag contains 16 red checkers and 16 black cherkers. anne removes 1 black checher and 2 red checkers from the bag and does not replace them. she the reaches into the bag and selects a checker at random. what is the probability that the checker is red?
Click here to see answer by Fombitz(32388) About Me 

Question 137998: I'm 27 and not in school anymore. I didn't want you to think that I'm cheating on homework. I'm just trying to explain things better to my neice. I can't remember how to do complex cubes. This is the one I'm stuck on.
I need to find all three of the complex cube roots of 27 in the A+Bi form.

Click here to see answer by scott8148(6628) About Me 
Question 137998: I'm 27 and not in school anymore. I didn't want you to think that I'm cheating on homework. I'm just trying to explain things better to my neice. I can't remember how to do complex cubes. This is the one I'm stuck on.
I need to find all three of the complex cube roots of 27 in the A+Bi form.

Click here to see answer by ptaylor(2198) About Me 

Question 138274: Need the root by prime factorization 4-1296
Click here to see answer by checkley77(12844) About Me 

Question 138533: (5-the square root of 2)X(5+ the square root of 2)
Click here to see answer by checkley77(12844) About Me 

Question 138603: i'm a freshman i college not real good with math..just wanted to know if i was on the right track..9v=15...i came up with 6/1..

Click here to see answer by stanbon(75887) About Me 
Question 138603: i'm a freshman i college not real good with math..just wanted to know if i was on the right track..9v=15...i came up with 6/1..

Click here to see answer by scott8148(6628) About Me 

Question 138971: I have to write each of the following in exponential form.
square root of 3(x^2y^3)
What I got for this was xy2/3 I am sure it's wrong
Please and Thank You=)

Click here to see answer by stanbon(75887) About Me 

Question 139381: y^3 =125 solve the equation for y. seeing if i am doing this right. my answer was y=5
Click here to see answer by checkley77(12844) About Me 
Question 139381: y^3 =125 solve the equation for y. seeing if i am doing this right. my answer was y=5
Click here to see answer by solver91311(24713) About Me 

Question 139583: Simplify.
(1+2square root of 5)^2

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