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

Tutors Answer Your Questions about real-numbers (FREE)

Question 457453: During a year a person saves 1200 dollars.
What is the corresponding number for the sentence.
Click here to see answer by stanbon(75887)

Question 457395: give example of two irrational numbers whose difference is a rational number ?

Click here to see answer by jim_thompson5910(35256)

Question 457937: Can you please help me, I have posted two of four questions below. I was hoping you could help me understand the first two so that I could do the second two without help. I am very confused.
For questions 16-20, classify the given numbers as real and rational, real and irrational, or complex.
16. (2 points) (4)^1/2 + 2
17. (2 points) 6+0i

Click here to see answer by richwmiller(17219)

Question 457982: find three consecutive integers such that twice the smallest is twelve more than the largest.
Click here to see answer by wilft1(217)

Question 458004: what is a real numbers?

Click here to see answer by edjones(8007)

Question 458033: Which are irrational numbers -2, o, 32, 4.31, sqaure root14, sq root 9,
Click here to see answer by stanbon(75887)

Question 458066: Under what circumstances would the domain be something other than all real numbers?
Click here to see answer by richard1234(7193)

Question 458216: LCD of both fractions 7/4a^3b^2 - 5/3a^2b^3.
Simply the expression and awesume that no denominator equals Zero.
Click here to see answer by stanbon(75887)

Question 458223: 7/4a^3b^2 - 5/3a^2b^3.
Simply the expression and awesume that no denominator equals Zero.
Click here to see answer by MathLover1(20849)

Question 459062: how to show some number is a rational number??
example..
a) 2.01414141414......
Click here to see answer by josmiceli(19441)

Question 459075: I am working on cardinality of sets and the problem is:
n(AᑎB)=6
n(BᑎC)=7
n(AᑎC)=8
n(AᑌBᑌC)=25
n(AᑎBᑎC)=4
n(B-A)=5
n(BᑌC)=20
Find the cardinalities n(A), n(B), n(C)
Click here to see answer by Edwin McCravy(20055)

Question 459770: i need help with pg 421 # 1-16 please and thank you. My book got destroyed and i dont have the prolems :( the book is

Algebra and Trigonometry: Structure and Method (2nd)
Click here to see answer by richard1234(7193)

Question 460537: N% OF 420=130 what is the value for N?
Click here to see answer by josmiceli(19441)

Question 460678: Find an irrational number with the requested property.
a. between 1 and 3
b. between 0.53 and 0.54
c. between 1/11 and 1/10
Click here to see answer by edjones(8007)

Question 460681: A person wants to board a plane with a 5ft. long steel rod, but airline regulations say that the maximum length of any object or parcel permitted to be checked on board is 4ft. Without bending or cutting the rod or altering it in anyway, how did the person check it through without violating the rule?
Click here to see answer by ankor@dixie-net.com(22740)

Question 460857: what number is equivalent to the rational number 8.37
Click here to see answer by poliphob3.14(115)

Question 461082: Name the property of real numbers illustrated by the equation.
-2(x+11)=-2-22
Click here to see answer by richard1234(7193)

Question 461873: PLEASE HELP ME :)
one number is 3 more than the second number. three times the first is 8 less than 2 times the second number. Find each number.

Click here to see answer by solver91311(24713)

Question 461897: The cardinal number in the set yellow blue red green indigo orange violet is __?
Click here to see answer by stanbon(75887)

Question 461897: The cardinal number in the set yellow blue red green indigo orange violet is __?
Click here to see answer by richard1234(7193)

Question 461878: Consider the system y=a and x=b where a and b are real numbers. Is this system
dependent or independent? Is it consistent or inconsistent? Describe the system. If it is
consistent, what is the solution?
Click here to see answer by robertb(5830)

Question 461983: A consultant traveled in a car for 3 hours to attend a meeting. The return trip took only 2 hours (different route) because his speed was 8 miles per hour faster. The total trip was 291 miles. What was the consultant's speed each way?
Click here to see answer by ankor@dixie-net.com(22740)

Question 462156: how do you show that 5 3/4 is a rational number by writeing it as the quotient of the two integers
Click here to see answer by algebrahouse.com(1659)

Question 463067: What do Laws of Exponent means?
Explain and give some examples.

Click here to see answer by Theo(13342)

Question 463131: 2. Which pair of equations does NOT have a common solution?
a) x+y = -1; 4x-3y=24
b)4x+6y=12; 6x+9y=12
c) 2x-3; 2x+y=4
d) 5x-4y=9; x-2y=-3

Click here to see answer by richard1234(7193)

Question 463148: Which pair of equations does NOT have a common solution?
a) x+y = -1; 4x-3y=24
b)4x+6y=12; 6x+9y=12
c) 2x-3y=-4; 2x+y=4
d) 5x-4y=9; x-2y=-3
Please Explain solution
Thank you!
Click here to see answer by richard1234(7193)

Question 463208: Find an irrational number with the requested property.
A.Between 1 and 3
B.Between 0.53 and 0.54
C.Between 1/11 and 1/10
Click here to see answer by edjones(8007)

Question 463481: Please help !!
Explain in your own words why (a+b)^2 is not equal to a^2+b^2 . What does (a+b)^2 an (a-b)^2 equal?
Click here to see answer by Gogonati(855)

Question 463472: Please help me solve the following problem:
Given that a/a= a^0 = 1
where "a" is a real number. Does this hold for all real numbers or
should we add a disclaimer about a? If a disclaimer is needed, what should it say?
Click here to see answer by richard1234(7193)

Question 463469: 10 - 5/6x = -5/6 + 10
Click here to see answer by rfer(16322)

Question 463475: Determine what is wrong with the following simplification.
x^2+y^2/x =x+y^2

Give an example that shows why this is incorrect. What should
x^2+y^2/x equal ??
Click here to see answer by richard1234(7193)

Question 464113: If (29,1)is joined to (63,-16) in a co ordinate plane , then where will the line cut the x-axis ?
Click here to see answer by rfer(16322)

Question 465080: Write the rational number in the form a/b
6 7/10
please show work
Click here to see answer by robertb(5830)

Question 465131: Why are there no real numbers that satisfy |x| < -1?
Thanks!
Click here to see answer by robertb(5830)

Question 465131: Why are there no real numbers that satisfy |x| < -1?
Thanks!
Click here to see answer by Edwin McCravy(20055)

Question 465215: Please help me with this. Find all numbers for which the rational expression is undefined.
2/25v
It is a negative fraction.
Click here to see answer by stanbon(75887)

Question 465348: Determine if the following real number is both composite and rational, both prime and rational, only rational or only irrational.
PIE ; like 3.14159265359
Click here to see answer by solver91311(24713)

Question 465488: make 5 numbers (real life situation) involving real numbers includingthe solution and answer.
Click here to see answer by richard1234(7193)

Question 466199: looking for the explanation and answers to
a) find two consecutive off intergers whose product is 783
b) find two consecutive even intergers that the sum of their squares is 340
Click here to see answer by Alan3354(69443)

Question 466271: hi tutor please help me in solving this problem
find three irrational numbers between the rational numbers 5/7and9/11
I thank you very much
Click here to see answer by richard1234(7193)

Question 466348: What is the real number property for mn=nm?
Click here to see answer by rfer(16322)

Question 466359: In the following problem a, b, c and d represent real numbers.
Prove: If a = b and c < d, then a + c < b + d

Click here to see answer by Theo(13342)

Question 466475: p(x)=x^2-2x+9
Click here to see answer by richard1234(7193)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590