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

Tutors Answer Your Questions about real-numbers (FREE)

Question 646762: HI TUTORS!
I have two questions that constitute one problem in my math book:
9. How is the additive inverse property related to the additive identity property? the multiplicative inverse property to the multiplicative identity property?
What is the answer to these questions in one problem?
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Question 646782: explain how to answer questions about irrational numbers?
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Question 647178: What is the set of numbers for the square root of 10.24?
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Question 647281: Mary is creating party favors with pencils and stickers. She has 20 pencils and 36 stickers, and wants each party favor to include the same combination of pencils and stickers, with none leftover. What is the greatest number of
party favors she could create?
algebra real numbers
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Question 648269: -1/10+(-9/10)
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Question 648244: (4/5)(3/8)
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Question 648438: how do I solve this/adding real number problem:
-|-11+6|

-Thanks.
Click here to see answer by lynnlo(4155)

Question 649441: can 8 square root of 56 over 2 be simplified?
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Question 649643: how do you solve 5-3[9-(8-7)]
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Question 649697: a 6 digit number with 5 in the ten-thousands place and 2 in the thousands place

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Question 649957: what sets of number does -7.34 belong to?

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Question 650126: is 1.2 a real number

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Question 650208: If a number is even, then the number is an integer.
Is it false or true?
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Question 650706: A=2(pi)(a)^2 solve for a. Sorry I didn't know what column to put this under. I keep getting square root of A/2(pi)=a??
Click here to see answer by MathTherapy(1422)

Question 650721: If f(x) is a polynomial function of degree greater than 2, and f(x) has only one zero, then can you say whether the zero is real or complex?
Please explain, I'm confused. Thanks.
Click here to see answer by Theo(3458)

Question 652612: -i^6699
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Question 652612: -i^6699
Click here to see answer by Edwin McCravy(8893)

Question 653299: to which subset of the real numbers does -18 not belong?
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Question 653299: to which subset of the real numbers does -18 not belong?
Click here to see answer by stanbon(57282)

Question 653492: which corespond to 84 divided by 12?
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Question 654171: Name the subset of the real numbers to which each number belongs
2/3
Click here to see answer by Edwin McCravy(8893)

Question 654546: which sum is the lowest?
(-12)+(-12)=
(-13)+(-30)=
(-25)+(-42)=
(-68)+(-50)=
Click here to see answer by solver91311(16872)

Question 655031: Suppose that y is directly proportional to x and that y = -64 when x = 7
Complete parts (a) and (b):
(a) Find the constant of proportionality k
(b) Use y=kx to find y when x=6
Thank you
Click here to see answer by stanbon(57282)

Question 654749: Is 0 a rational number?

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Question 656175: Please help can't seem to understand this....
Find the product. Justify your steps
-3(-5)(-4x)

thanks
Click here to see answer by Alan3354(30993)

Question 656313: After three plays in which a football team lost 7 yds. gained 3 yds, and lost 1 yd, respectively, the ball was placed on the team's own 30 yd line. Where was the ball before the three plays?
Click here to see answer by checkley79(3050)

Question 656595: t^1/2 -2t^1/4 +1=0 find the real solutions
Click here to see answer by htmentor(789)

Question 658208: x^3-x^2-7x+15 please state the total number of zeroes for the function both real and imaginary. using the rational root theorem.
Click here to see answer by jim_thompson5910(28536)

Question 658601: In Exercises 103–112, let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following.
A ∩ B

Click here to see answer by kevwill(135)

Question 657012: (1/x)-(1/x+1)=3
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Question 655806: Please can someone help me why I'm very confused with what my math teacher taught and i have latest tomorrow. I am not allowed to email him for any questions during the weekend and I was afraid to ask him because he was very angry in class. He told us that NATURAL NUMBERS SET is ONLY from 1-9 because numbers like 10 &20 have a zero so they are whole numbers. Is this true?
Click here to see answer by kevwill(135)

Question 643444: Tell whether the statement is true for all real number a,b, and c. Explain your answer. (a÷b)÷c= a÷(b÷c)
Click here to see answer by kevwill(135)

Question 659366: what is a rational number between -36^2 and 36^2
Click here to see answer by Alan3354(30993)

Question 660537: Determine whether
the following statement is
sometimes, always, or never
true for positive integers a
and b by using the properties
of square roots.
Click here to see answer by math-vortex(472)

Question 660711: I hoping I can get some help on this....find any real numbers for which the rational expression is undefined.....I would love to see how this is done thank you
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Question 661804: write 2+sqrt 2/sqrt 2 in the form of a+b sqrt 2
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Question 662663: 5x=3y, find ratio on x:y
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Question 663185: how we can solve[3-4{5*3}-(23+bar on(56-67))]
Click here to see answer by lynnlo(4155)

Question 663590: Brian's Square Pool Has An Area Of 124ft. Estimate The Side Lenght Of His Pool
Click here to see answer by mananth(12270)

Question 664163: solving problems involving inequalities

The length of a rectangle is 7 cm longer than the width. The perimeter is no more than 38 cm.
Click here to see answer by pv=nrt15rcks(23)

Question 664172: Solving Problems involving Inequalities
The sum of two consecutive even integers is at most 180. Find the pair of integers with the greatest sum.
Click here to see answer by pv=nrt15rcks(23)

Question 664175: Solving Problems involving Inequalities
A house and a lot together cost more than $86,000. The house costs $2,000 more than six times the cost of the lot. How much does the lot cost by itself?
Click here to see answer by ReadingBoosters(3246)

Question 664989: Determine which two values the following number is between the SQUARE ROOT OF 250 ?

Click here to see answer by lynnlo(4155)

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