Tutors Answer Your Questions about Radicals (FREE)
Question 41613: I have an equation that is stumping me. (sqrt5x+5)-15=0
I have solved it down to 5x = 230
x = 230 over 5
From this point on I am stuck. Have I done something wrong or where do I go to finish it?
Thank you.
Click here to see answer by Earlsdon(4900)   |
Question 41973: I am sorry if I picked the wrong type of question, I did not see one about completion of squares. I was wondering if you wouldnt mind checking the answer I got for the equation x^2-8x=25. What I calculated as a final answer was
4+ 3i and 4-3i.
Thank you for your time,
Kendall
Click here to see answer by psbhowmick(456) |
Question 42285This question is from textbook 
: Here it is copied and pasted exactly out of the book.
Construction. A garden area is 30 ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400 ft^2, what is the width of the path?
Paul answered it as
400=(30+2x)(20+20)-(30*20)
400 = 4x^2 + 100x
x^2 + 25x - 100 = 0
Solve that and you get x = 3.5'
You replied with this can't be solved, so I am confused now.This question is from textbook
Click here to see answer by PaulAllen65270(19)  |
Question 42613: I'm not good with word problems. This stuff is hard and I can't wrap my brain around it. Can you help me figure this out?
A right triangle is a triangle with one angle measuring 90°. In a right triangle, the sides are related by Pythagorean Theorem, where c is the hypotenuse (the side opposite the 90° angle). Find the hypotenuse when the other 2 sides’ measurements are 3 feet and 4 feet.
Answer:
Show work in this space
Click here to see answer by Socom491(19) |
Question 42612: Right now we are studying Radicals and Rational Exponents and I'm not grasping the concept. Can you show me, step by step and in simple terms, how I would go about solving a problem such as this:
Solve the following equations.
a) radical symbol x^2 - 1 = 3
Click here to see answer by Earlsdon(4900) |
Question 42614: Another word problem and I don't know where to begin. Please, Please, Please, help me to figure this out.
Suppose you travel north for 35 kilometers then travel east 65 kilometers. How far are you from your starting point? North and east can be considered the directions of the y- and x-axis respectively.
Answer:
Show work in this space.
Click here to see answer by Earlsdon(4900) |
Question 42812: I submitted this earlier, but have not seen this answered yet. I got $58.58 and $341.42 but cannot get the numbers to check. I think I am doing the demand problem incorrectly....HELP.
The demand equation for a certain type of printer is given by
D= -200p + 35,000
The supply equation is predicted to be
S= -p2 + 400p - 20,000
Find the equilibrium price.
-200p + 35,000 = -p2 + 400p - 20,000
-p2 - 400p - 20,000 = 0
a = 1 b = -400 c = 20,000
D = - 200(58.58) + 35,000 = -11,716 + 35,000
= 23,284
S= -(58.58)2 + 400(58.58) - 20,000
D = - 200(341.42) + 35,000 = -68284 + 35,000
= 33284
S= -(341.42)2 + 400(341.42) - 20,000
Click here to see answer by psbhowmick(456) |
Question 43149: Simplify (be sure to rationalize all denominators)
10. 3b[SQRT(27a^5b)] + 2a[SQRT(3a^3b^3)]
I somehow came up with SQRT(3)(2SQRTa^3b^3a+9bSQRTa^5b)but thats not the correct answer and I need to learn all the steps to come to the correct answer so I'll know for futre problems like this. Thank you!
Click here to see answer by stanbon(26297) |
Question 43150: Simplify (be sure to rationalize all denominators)
12. x^(3/4) + 5/[x^(1/4)] (you may assume x>0)
I'm not sure what to do with this problem, I came to the incorrect answer of x+5/[x^(1/4)]. I thought mabye I could rewrite it as x^(3/4) + [5x^(3/4)] / x and then factor out the x^(3/4). But I'm not sure how to do all this. I'd really appreciate your help, thanks!
Click here to see answer by stanbon(26297) |
Question 43085This question is from textbook College Algerbra
: For the equation x-√x-0 , perform the following:
a)Solve for all values of x that satisfies the equation.
b)Graph the functions x=y and y= √x on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
c)How does the graph relate to part a?This question is from textbook College Algerbra
Click here to see answer by aaaaaaaa(138) |
Question 43217: Simplify (be sure to rationalize all denominators)
12. x^(3/4) + 5/[x^(1/4)] (you may assume x>0)
Hello, I really need help with this problem. I tried myself and got this answer x+5/[x^(1/4)]. But, I was tould this is not correct. I was advised to re write the problem as x^(3/4)+[5/x^3/4]/x and then factor out the x^3/4. But I dont know exactly how to do this. I asked this question earlier, but i recieved the same incorrect answer that I came up with. If anyone could help me and show all the steps to the correct simplified answer with a rationalized denominators I would appriciate it so much. Thank you.
Click here to see answer by fractalier(1804)  |
Question 43251: I asked this question a few days ago, but haven't received a response. Because I am bombing when it comes to rational exponents and the radical sign; It just totally confuses me, so I'm here begging for some assistance. Can anyone please, please, help? I would be forever grateful.
"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 and example of an equation easier to solve as a rational exponent rather than a radical sign."
Click here to see answer by fractalier(1804) |
Question 42620This question is from textbook college algebra
: 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 than a radical sign.This question is from textbook college algebra
Click here to see answer by fractalier(1804) |
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