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

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Question 1133413: What is the sum of all the positive integers x such that x^4 - x^2 + 64 is a perfect square
Click here to see answer by Alan3354(69443)

Question 1133755: A flying fish jumped 13 3/8 inches out of the water and then dove down to 32 5/12 inches under water. What rational number represents the distance from the fish's highest point to its lowest point?
Click here to see answer by Alan3354(69443)

Question 1133823: P(x) = x^4 -2x^3 -4x^2+14x-5
Click here to see answer by MathLover1(20849)

Question 1133805: Find the maximum integral value of k such that 2014^k divides (1! x 2! x 3!x ... x 2014!)?
Click here to see answer by greenestamps(13195)

Question 1134146: In adding or subtracting fractions ANY common denominator will allow you to add /subtract the two fractions. However discuss what is the advantage might be in using the LEAST common denominator to add/subtract them.
Click here to see answer by Alan3354(69443)

Question 1134145: A fellow Intermediate Algebra student tells you that x ^2 y^2, x^5 y^5, x^3 y^3 and has a least Common Multiple [which is the LCM. but can be thought of as the Least Common Denominator if it was the bottom of fractions]. You know that this student is INCORRECT Explain what the LCM really is for these terms and explain why or how you got that.
Click here to see answer by MathLover1(20849)

Question 1134144: Explain when the Least Common Multiple [LCM] of two expressions is equal to all of BOTH of them multiplied together.
Provide your own example to illustrate your reason(s).

Click here to see answer by MathLover1(20849)

Question 1134143: If (x+2) ^m/(x+2)^n=x^2+4+4, explain clearly the relationship between m and n.
Click here to see answer by greenestamps(13195)

Question 1134171: Rewrite each rational expression with the indicated denominator.
7/12 = ?/48
-6/b= ?/4b
6/5t^5u^2= ?/10t^7u^5
8/m-8= ?/m(m-8)
Click here to see answer by Theo(13342)

Question 1135210: f(x)=6-3x^2,if x<0
find the inverse of the one to one function
f^-1(x)?
Click here to see answer by MathLover1(20849)

Question 1135219: Which numbers are irrational and why?
1) √25
2) 0.32656723
3) √151
4) 0.7 (repeating decimal)
5) 15/7
6) -2 17/19
Click here to see answer by ikleyn(52754)

Question 1135219: Which numbers are irrational and why?
1) √25
2) 0.32656723
3) √151
4) 0.7 (repeating decimal)
5) 15/7
6) -2 17/19
Click here to see answer by MathLover1(20849)

Question 1136063: circle the number that is exactly the same as the given number 386338263
Click here to see answer by ikleyn(52754)

Question 1136086: halfway between -17 and 5

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Question 1136106: The product of three consecutive integers is -336. Find the numbers
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Question 1136106: The product of three consecutive integers is -336. Find the numbers
Click here to see answer by Alan3354(69443)

Question 1136106: The product of three consecutive integers is -336. Find the numbers
Click here to see answer by greenestamps(13195)

Question 1136600: Refer to the triangle below. If a=3 and b=3,
(A) find the exact length of c in insimplified radical form
(B) find the exact length of c in simplified radical form
(C) find c to the nearest hundredth
Click here to see answer by ikleyn(52754)

Question 1137990: A department store sells shirts for 12.50 each. Dalila buys 3, Latisha buys 3 and Pilar buys 1. Can someone help me illustrate the distributive property by writing two expressions to represent the cost of these shirts?. In addition, can someone help me use the same property to find how much money the store received from selling the shirts? thanks in advance.
Click here to see answer by Boreal(15235)

Question 1138625: a positive integer when divided by 88 gives the remainder 61. what will be the remainder when the same number is divided by 11
Click here to see answer by ikleyn(52754)

Question 1138553: Find all three-digit numbers which decrease 13 times when the ten's digit is suppressed.
Click here to see answer by greenestamps(13195)

Question 1138648: What is the vertex and equation of symmetry of F(x)= 2x^2+6x+8
Click here to see answer by MathLover1(20849)

Question 1138622: Find all positive integers a and b so that (a+1)/b and (b+2)/a are simultaneously
positive integers.
Click here to see answer by greenestamps(13195)

Question 1138622: Find all positive integers a and b so that (a+1)/b and (b+2)/a are simultaneously
positive integers.
Click here to see answer by Edwin McCravy(20054)

Question 1138833: Find the only value of N which satisfies ALL of the following conditions. Please show me your working
N is a whole number
3 ≤ N < 27
N is odd
N is a multiple by 3
√N is not an Integer
N is divisible by 5
Thank you
Click here to see answer by Edwin McCravy(20054)

Question 1137916: Given 2 < a < 3 and 5 < b < 6 Find:
a. __ < a-b < __
b. __ < a/b < __
Click here to see answer by Edwin McCravy(20054)

Question 1112592: The sum of two 3-digit numbers, abc and def, is estimated as 100(a + d). What is the maximum error this estimation method could yield for the sum?
Click here to see answer by Edwin McCravy(20054)

Question 1138942: Two numbers whose questient is a rational no.
Click here to see answer by josgarithmetic(39613)

Question 1139669: find 6 rational number between -3/11 and 8/11
what do i do when there's a minus on the numerator
Click here to see answer by Edwin McCravy(20054)

Question 1139669: find 6 rational number between -3/11 and 8/11
what do i do when there's a minus on the numerator
Click here to see answer by MathLover1(20849)

Question 1140137: Are the solutions to 7 rational or irrational numbers?
Click here to see answer by josgarithmetic(39613)

Question 1140266: is the 1 and the square root of 9 irrational
Click here to see answer by josgarithmetic(39613)

Question 1140783: Which of the following are natural, whole, integers, rational, irrational and real numbers:
-7
- 2/7

0

0.75

sq rt of 3:irrational

pi sign: irrational

sq rt of 100

sq rt stands for square root. Also, I started the irrational numbers.

Click here to see answer by Boreal(15235)

Question 1140935: what number is halfway between-5/39 and -6/117?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1140935: what number is halfway between-5/39 and -6/117?
Click here to see answer by josgarithmetic(39613)

Question 1141345: The function f is defined by f(x)= k/x +3, where k is a constant. Find k, if the graph of f passes through the point (3/4 ,0).
Click here to see answer by Edwin McCravy(20054)

Question 1141345: The function f is defined by f(x)= k/x +3, where k is a constant. Find k, if the graph of f passes through the point (3/4 ,0).
Click here to see answer by josgarithmetic(39613)

Question 1141351: Find f(x) if it is known that f(x+5)=x+12.
Click here to see answer by math_helper(2461)

Question 1141548: A baseball is thrown upward and its height after t seconds can be described by formula h(t)=−16t2+50t+5. Find the maximum height the ball will reach.
Click here to see answer by josgarithmetic(39613)

Question 1141889: What subset of real number does -18 belong to

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Question 1142253: Change 61 2/3° to degrees and minutes.
Change 31 31/90° to degrees, minutes, and seconds.
Click here to see answer by ikleyn(52754)

Question 1142334: I know that zero is not negative or positive but why. My reasoning is because a positive number has to be greater than zero and a negative number has to be smaller than zero since zero is zero then it can't be greater or smaller than itself. If zero is neither of those then what is it.
Thank you

Click here to see answer by Edwin McCravy(20054)

Question 1142416: -34 + 1/3 x 2
Click here to see answer by ikleyn(52754)

Question 1142562: three hours of videotape contains two movies with lengths that are in the ration 5:3 what is the difference in the lengths of the movie in minutes
Click here to see answer by Theo(13342)

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