Questions on Algebra: Real numbers, Irrational numbers, etc answered by real tutors!

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Question 113624: My son and I can't get the solution to value of a vairable. 8+[5+(6+x)]. How do you combined the numbers to get a solution to x.
It is a worksheet on operations with polynomials. Model Problems.
Thank you in advance Terrance and Beverly Mays

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Question 113814: Twice the square of a positive integer is 12 more than 10 times that integer. What is the integer?
10(x)^2 = x + 12

I know I have to have a formula first. Am I on the right track for the formula in order to solve this problem?

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Question 114275: 4t-5/-9=7
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Question 114601:
Im trying to help my son, but I cant figure it out. Please Help.
Find two consecutive intergers so that the sum of the first and 3/4 of the second is 6.

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Question 114975: Determine the value that will make the given equation have exactly one rational solution.
Kx^2 - 10x = 5

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Question 115481: I can not figure this out please help me. Thanks so much Place the following set of numbers in ascending order.

,5/9,1/8,,2/7

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Question 115555: I really need help with this problem. The problem says to find two consecutive intergers whose product is 90, it must be solved algebraically. Thank You.
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Question 115555: I really need help with this problem. The problem says to find two consecutive intergers whose product is 90, it must be solved algebraically. Thank You.
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Question 115682: I do not understand how to do this could someone help please. Thank you so much.
Subtract –8.1-(–1.3).

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Question 115719: I need help please I am not sure but I believe the answer -6/0 which I believe is undefined. Am I right? Thanks so much for your help.
Perform the indicated operation.

14-20
_________
(4)(3)-12

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Question 115686: I do not know real number at all please help!Thank you.

Multiply (–1.6)(4)(–10).

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Question 115683: I have another here I do not understand how to do. Would someone show me how / Thanks for any help at all.
Find the reciprocal of 1/3 (-6-10).Write your answer in simplest form.

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Question 115872: How do you tell what is a rational number and a irational number?

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Question 116342: Please help.
Please Evaluate the following.
-15+6/3
Thanks
JMS

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Question 117002: Solve and express in simplest radical form.
3n^2 - 75 = 0
I think the answer is n = 5; n = -5 but I'm not sure.

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Question 117124: Is 1/0 irrational? You are not supposed to divide by zero, therefore, 1/0 cannot be rational, therefore, it must be irrational. Does this hold true? Is it imaginary since it cannot be found on the real number line? Where does it live...irrational, imaginary, neither. Please help.
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Question 117124: Is 1/0 irrational? You are not supposed to divide by zero, therefore, 1/0 cannot be rational, therefore, it must be irrational. Does this hold true? Is it imaginary since it cannot be found on the real number line? Where does it live...irrational, imaginary, neither. Please help.
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Question 117608: My problem is: 7xy (seven hundred and something) times 4z (forty something) = abcde. the variables are each a different whole number between 0 - 9 - excluding 7 and 4 which is already used. I've found a few things to narrow the problem down - such as the answer should be between 29442 (701 X 42) and 38514 (786 x 49) and that I don't thing y or z can be 0 or 1. - your help is appreciated.
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Question 117608: My problem is: 7xy (seven hundred and something) times 4z (forty something) = abcde. the variables are each a different whole number between 0 - 9 - excluding 7 and 4 which is already used. I've found a few things to narrow the problem down - such as the answer should be between 29442 (701 X 42) and 38514 (786 x 49) and that I don't thing y or z can be 0 or 1. - your help is appreciated.
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Question 118037: Can you please help me solve this problem?
3x - 2(5 - x) = -3(x - 10) + 3x

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Question 118260: x2 + x + sqr root of x2 + x -2 = 0
b4 + 13b2 + 36 = 0

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Question 118482: 4(9+3t)-12=-6
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Question 118585:
The sum of three numbers is 137. The second number is 4 more that two times the first number. The third number is 5 less than three times the first number. Find the three numbers.
Thank you for your help!

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Question 118691: whatshoul you do with a set of numbers before you find it's mesures of central tendency?
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Question 118988: the subset of all x e S, S = {1, 3, 6, 7, 10}, suth that x is an odd integer
- I know its rather simple but I don't get it, I don't know if I have to find a pattern or what? Help is greatly appreciated thank you. (not sure it its obvious but that e is the element of )

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Question 119133: OK, the question reads name the additive and multiplicative inverse for each number.
-4 3/5.
i dont underdstand inverses to well nut what i do know is that it is basically the reciprocal.correct?
so would it be..((additive)
4 5/3 so it would equal 0?
and the multiplicative would be...
all i know is that you have to get it to equal one
so mabey....
4 3/5 again?
thanks for taking your time to answer my question

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Question 119135:
Multiply (3+2i) (2-3i)

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Question 119140:
Solve for x: x^2-10x+14=0

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Question 119140:
Solve for x: x^2-10x+14=0

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Question 119141: Solve for x : 1+ 3x/(x+5)(x-2) = 2/(x-5) + 3/(x-2)
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Question 119465: express in positive exponents 3c-4
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Question 119569: Please help me with this algebra question. Thank you very much

sqrt%28-t%5E5%29%2F2xsqrt%28-2%29%2Ft%5E3

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Question 120340: -1.2x+20 = -2.8x+28
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Question 120425: I have to change the repeating decimal to fraction. 2.39999999999999999999999999999999999999999999999999999999999999
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Question 120528: The question says find two consecutive whole numbers that each number falls between. Then estimate the number's value.
sqrt(31)


Thanks

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Question 120531: The question says find two consecutive whole numbers that each number falls between. Then estimate the number's value.

sqrt(80)

Thanks

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Question 120529: The question says find two consecutive whole numbers that each number falls between. Then estimate the number's value.

sqrt(14)

Thanks

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Question 120690: what is multiplicative inverse?
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Question 120692: what is a multiplicative inverse?
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Question 120717: Three times a whole number is 10 more that half the number. What is the number?
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Question 120775: Determine whether -4th root of 16 is rational or irrational.

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Question 121331: I can't find what category this would be but the section says Problem solving Consecutive Integers. The problem says The lenghters in feet of three ropes are consecutive multiples of 3. If each rope were 4ft shorter, the sum of their lengths would be 42ft. Could you walk me thourgh how to do this.
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Question 121401: Calculate the first 10 powers of i. Observe the pattern. Explain how to quickly calculate any whole number power of i.( ex. What is i^312?)
I know how to calculate the first ten powers and I see the pattern but I am awful at explaining to other people. Can you help?

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Question 121401: Calculate the first 10 powers of i. Observe the pattern. Explain how to quickly calculate any whole number power of i.( ex. What is i^312?)
I know how to calculate the first ten powers and I see the pattern but I am awful at explaining to other people. Can you help?

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Question 121435: Determine those real numbers a for which the opposite of a is the same as the reciprocal of a.
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