Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

Tutors Answer Your Questions about Radicals (FREE)

Question 163810: Simplify √ (32x5y2) that is sqrt (32x5y2)
Click here to see answer by vleith(2983)

Question 163811: The Schwarzschild radius describes the critical value to which the radius of a massive body must be reduced for it to become a black hole.
R = 2 G M / c 2
where
G = gravitational constant 6.7x10 -11
M= mass of the object
C = speed of light 3x10 8
The sun has M = 2x10 30 . What is the Schwarzschild radius for the sun? [Note its true radius is 700,000.]

Click here to see answer by vleith(2983)

Question 163751: I need help with this question. I am having a hard time knowing even where to start...
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)
Thank You
Click here to see answer by ankor@dixie-net.com(22740)

Question 163925: How do you answer the following questions?
Given f(x)= x � 3 and g(x)=square root of (x-2)find the domain of the quotient function f/g.
Click here to see answer by stanbon(75887)

Question 164000: Time to swing. The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2= (3.14)^2(L)
If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing?

Click here to see answer by stanbon(75887)

Question 164137: sqrt(6+1)(8sqrt(6+1)
Click here to see answer by checkley77(12844)

Question 164261: Simplify the square root of X over the the square route of X + the square root of Y
Click here to see answer by padmameesala(42)

Question 164387: I need help with this question as soon as possible. I have been working on it and cannot figure it out.
The weight of an object follows this equation: where C is the constant, r is the distance from the center of the earth (3963 miles). Using the value of C = 1570536900, determine how much an object would weigh in Death Valley (282 feet below sea level).
How much would the object weigh at the top of Mt. McKinley (20,320 feet above sea level).
Thank you!
Click here to see answer by josmiceli(19441)

Question 164386: I need help with this question as soon as possible. I have been working on it and cannot figure it out.
The weight of an object follows this equation: where C is the constant, r is the distance from the center of the earth (3963 miles). Using the value of C = 1570536900, determine how much an object would weigh in Death Valley (282 feet below sea level).
Thank you!
Click here to see answer by ankor@dixie-net.com(22740)

Question 164396: \sqrt{x}+ 4 = 2\sqrt{x+5} solve and check
Click here to see answer by Fombitz(32388)

Question 164460: SQRT 108
Click here to see answer by checkley77(12844)

Question 164463: 4 SQRT 45 - 7 SQRT 405
Click here to see answer by checkley77(12844)

Question 164462: 4 SQRT 98/25
Click here to see answer by checkley77(12844)

Question 164461:

Click here to see answer by Edwin McCravy(20055)

Question 164459:
Click here to see answer by Alan3354(69443)

Question 164459:
Click here to see answer by themathprof(21)

Question 164458: 3 SQRT 75
Click here to see answer by orca(409)

Question 164617: For what value(s) of x does absolute value of 9x minus the square root of 9x equal 0?
Click here to see answer by Fombitz(32388)

Question 164731: simplify he square root of 3xy^5 OVER 27X^3
Click here to see answer by Alan3354(69443)

Question 164766: Find the following
sixteenth root(-4)^16
Is this correct
4
Click here to see answer by checkley77(12844)

Question 164836: I have been trying this question for 45 minutes and have looked at many examples. My teacher gave out his personal worksheet so I cannot check my homework answers. The question is: 3 square root sign 18 + 3 square root sign 32.
I tried breaking it down and and I just get more confused. I know you have to break it down though..? but how to I add the number outside originally? the number outside the square root sign is not an exponet.
Click here to see answer by stanbon(75887)

Question 164784: Factor out the greatest common factor.
5x^6*20x^5+25x^4
The factorization is _
(answer in factored form)
Click here to see answer by checkley77(12844)

Question 164946: I tried to solve myself but not sure where how to arrive at answer. Please help.
The average (mean) cost for a service club to publish a directory of its members is given by the rational function
f(x)= 1.1x+700/x

where x is the number of directories printed. Find the average cost per directory for x = 500.

Click here to see answer by Fombitz(32388)

Question 164948: i need help on a problam
Click here to see answer by MRperkins(300)

Question 165006: solve
T^2+T-20=0
Click here to see answer by nerdybill(7384)

Question 165005: subtract simply by collecting like radical terms it possible.
9 sqrt 18 - 6 sqrt 2
Click here to see answer by nerdybill(7384)

Question 165051: can someone help
. Multiply:
(sqrt[3] + 4sqrt[5])(2sqrt[3] � sqrt[5])
and
. Divide:
x2 � 3x + 2/8x - 8 � x2 � 4/5x + 10

Click here to see answer by nerdybill(7384)

Question 165061: 96.) Find all real or imaginary solutions. use the method of your choice.
sqrt(7x+29=x+3)

Click here to see answer by jim_thompson5910(35256)

Question 165083: 30.) Solve each equation and check for extraneous solutions.
sqrt(a-1 -5 = 1)

Click here to see answer by Alan3354(69443)

Question 165083: 30.) Solve each equation and check for extraneous solutions.
sqrt(a-1 -5 = 1)

Click here to see answer by jim_thompson5910(35256)

Question 165003: 25x^4-25^2+6=0
The solution is x=
The answer that I got is:
sqrt15/5,-sqrt15/5
is this correct!
Click here to see answer by edjones(8007)

Question 165240: I need to solve the equation for r:
w=Cr^-2
Click here to see answer by vleith(2983)

Question 165407:
Click here to see answer by stanbon(75887)

Question 165407:
Click here to see answer by Edwin McCravy(20055)

Question 165611: rationalize 4/ {sqrt 3} + 1
Click here to see answer by oscargut(2103)

Question 165610: 2 {sqrt x^3} + 5x{sqrt x} - 3{sqrt x^5}
Click here to see answer by nerdybill(7384)

Question 165609: 3 {sqrt 3}/ {sqrt 6}
Click here to see answer by nerdybill(7384)

Question 165613: ^3{sqrt x+1}=5
Click here to see answer by jim_thompson5910(35256)

Question 165558: What steps would you take to simplify this problem:
(2 √(x-5))(3 √(x+1)) where the x-5 and the x+1 are both completely under the radical sign.
Click here to see answer by edjones(8007)

Question 166014: how would you go about solving this problem?
7 sqrt12 + 10 sqrt48
Click here to see answer by ankor@dixie-net.com(22740)

Question 166011: how would you go about solving this problem?
7 sqrt12 + 10 sqrt48
Click here to see answer by checkley77(12844)

Question 166064: [(squareroot of 3) + (square root of 5)] to exponent of 2
Click here to see answer by checkley77(12844)

Question 166502: (2sqrt3 + 4 sqrt 2)-(4 sqrt 2 - 3sqrt3)
Click here to see answer by jim_thompson5910(35256)

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