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

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Tutors Answer Your Questions about real-numbers (FREE)

Question 65074: What is the type of problem for which no real number has a solution called?
Click here to see answer by Nate(3500) About Me 
Question 63160: ThIS IS USING RATES...
Portia drove her new car 425 miles on 10.8 gallons of gasoline.
A. what is the cars rate of gasoline consumption in miles per gallon?
B. if this is the typical mileage for portia's car, how much gas will it take for a 750 mile vacation trip?
C. if gas cost $1.35 per gallon, how much will portia spend on gas on her vacation?
D. the manufacturer advertised that the car would get 30 to 35 miles per gallon. how does portia's mileage compare to the advertised estimates?
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Question 65324: how can i tell if a -674 is a interger or a whole number or a natural and are all numbers integers
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Question 65806: Graph
-x - 3 >= - 1; D = {reals}
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Question 65995: Find the value of "k" if f(x) = 3x2 + 6x + 1 is put into general form.
a. -2
b. -1
c. 1
d. 3
e. 4

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Question 66266: I need to learn how to solve 4.692a+30=3.7a-0.4 I have a test on this tommorow and i would really appreciate the help
thanks
smiles
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Question 66266: I need to learn how to solve 4.692a+30=3.7a-0.4 I have a test on this tommorow and i would really appreciate the help
thanks
smiles
Click here to see answer by Earlsdon(6294) About Me 
Question 66265: I have a test tommorow, I need some help with some of the problems im not sure about how to do problems like S=B+1/2pl, and u have to solve for l.
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Question 66299: how do u convert a ratio to a decimal and how do u convert each number to a fraction in lowest term
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Question 66542: Given the number 1.5, determine all of the number sets to which it belongs.
1. Natural Number
2. Whole Numbers
3. Integers
4. Rational Number
5. Real Number
Click here to see answer by stanbon(75887) About Me 
Question 66671: Find
(f-h)(-3) if f(x) = (x+1)^2; D = {Reals}, and h(x); D = {Integers}
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Question 63159: please help
simplify
4^0 - 64/2^4 - (-3)^0 - 3^0 - 2[(-3-2^0) - (-3 -2)]
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Question 67010: 4) For the function,
a) Give the y values for x = -2, -1, 0, 1, 2, 3.
Answer:
Show work in this space.


b) Using these points, draw a curve.
Show graph here.

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Question 67358: I need help solving:
7x-{3[4(x-2)-3(x+1)]-5(2x-3)}

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Question 67794: Pleae help to
Show that 0.00315 is a rational number by writing it as a fraction of integers
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Question 67890: Hi, I need help solving this problem. I have a big! problem with mixture problems : and I have to take chemistry soon. Please help!! Thanks
Question:
A radiator contains 6L of a 25% antifreeze solution. How much should be drained and replaced with pure antifreeze to produce a 50% antifreeze solution?
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Question 68102: I need to know how to find a rational number between 3.8 and 3.9.
Click here to see answer by Edwin McCravy(20054) About Me 
Question 68217: I understand what to do when the signs are the same in this problem but what do I do if they differ? 89.3+(-14.4)
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Question 68239: Solve the inequalty. Graph the solution on a number line. -6 > x + 5

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Question 68723: I need help solving -3.4 - (-7.6)
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Question 68726: I have a math problem that I am trying to solve.
16/ (-2) x (-4) this is the top row, it is division of real numbers
2 to the third power + 4 this is the bottom line
I did 16 divided by 2=8 x 4=32 as my top line then I got 8+4 as my bottom line
but that is not even. I also tried 16 divided by 8=2 as my top line and got 12 as my bottom line.
What am I doing wrong?
Click here to see answer by ptaylor(2198) About Me 
Question 68724: I am having trouble figuring out the temperature range in this problem. If the lowest temperature recorded was -54 degrees fahrenheit and the highest recorded was 119 degrees fahrenheit, what is the temperature range?
Click here to see answer by tutorcecilia(2152) About Me 
Question 70062: factor 4p2q+pq2+4p3
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Question 70201: -n + 4 = 12
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Question 71061: Factor completely over the rational numbers: x^2-72
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Question 71062: Factor completely over the imaginary number: x^4-3x^2-40
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Question 71181: fine two fractions in lowest terms with unequal denominators whose diffrent is 2/13

Use your creativity on this one. Choose a fraction to start with.
1/3-1/x=2/13
-1/x=2/13-1/3
x=39/7
1/3-7/39=2/13
This is just one of many.
Click here to see answer by galactus(183) About Me 
Question 71566: PLEASEEE HELP ME SOLVE FOR X WHEN
2=(x/100-x)^3
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Question 71791: (4/2x)+(9/3x)
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Question 72694: 2 positive real numbers that differ by 1 and have a product of 1
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Question 73893: WHERE CAN I FIND FREE ALGEBRA
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Question 73965: bailey wants to make a scale drawing of his house.his house is 32 feet long. in the scale drawing,2inches will repersent 10 feet. which is the best estimate for the length of bailey's house in the scale drawing.
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Question 74338: The product of 3 and a number decreased by 50.
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Question 74661: looking at a problem like this {-8,-square root 5,-.6,0,3/4,square root 3, pie,5,13/2,17,40/2} for a person that is just learning how can i tell what is rational, irrational, whole, real, integers,and natural numbers please i am having some comprehension problem with this. i just can not seem to understand it please help!
Click here to see answer by jim_thompson5910(35256) About Me 
Question 75468: Which of the following is/true?
A.The prime factors of 20 are 4 and 5.
B.The HCF of 12 and 20 is 2.
C.The LCM of 2,10 and 14 is 70.
Click here to see answer by checkley75(3666) About Me 
Question 75469: Which of the following is/true?
A.The prime factors of 20 are 4 and 5.
B.The HCF of 12 and 20 is 2.
C.The LCM of 2,10 and 14 is 70.
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Question 76283: When does 2 negative numbers equal a positive number
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Question 76283: When does 2 negative numbers equal a positive number
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Question 77334: Q.1) If a, b, c, are real numbers such that a2+2b=6, b2+4c= -7 and c2+6a= -13, then the value of a2+b2+c2 is equal to :
(A) 14 (B) 21 (C) 28 (D) 35
Q.2) If x, y and z are positive integers with xy= 24, xz= 48 and yz=72, then x+y+z is:
(A) 18 (B) 19 (C) 20 (D) 22
Click here to see answer by Edwin McCravy(20054) About Me 
Question 77837: out of the following, choose the MOST specific category of numbers to describe the number of days until your next vacation (not including half days) (A) integers (B) natural numbers (C) rationall numbers (D) irrational numbers
Click here to see answer by jim_thompson5910(35256) About Me 
Question 78449: 2.what is a fraction that is not a simple fraction?
3. a rational number

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Question 78438: In the "firrst quater of the year" means Januryary,Febrruary, and March. The "second quater" is April,May,and June.


Achme Reaaltors sold 23 houses during the first quater of the year and again duyring the last quater. Sales during the middle quater was not quite as good, so that tht the annual sales was 57 houses. b &B realty compaly sold 50 homes during the second quater and hald that many during the forth quater, for a total annual sales of 75 homes. Arco sold as many houes during the thurd quater as B&B sold during the entire year, but during the other three quaters they did no better then b&b during the first quater. Toget the tgree cinoabues sikd 79 giyses during the third quater.
How many houses did the three companies sell during the second quater?
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Question 78865: the problem is:
GRAPE
- PLUM
--------
APPLE USING 0,1,2,4,6,7,8,9
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Question 79324: What is 2 to the negative 1.8 power rounded to nearest hundredth?
What is e to the 3.79 power rounded to the nearest hundredth?
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Question 79351: (4+3i)-(5+6i)
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