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

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Question 744288: Twenty times the square of a non-zero number is equal to 20 time the number. What is the number?
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Question 744576: Find the remainder when is divided by 2013 .

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Question 745363: square root 9u-13=square root7u-8
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Question 741951: - 144/4 to which set does the number belong
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Question 725020: The number 18 can be written as the sum of 9 consecutive integers.What's the product of these integers?
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Question 738228: Show that there are infinitely many positive primes.
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Question 747101: what is the number of real solutions in -x^2+9x+7=0
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Question 747381: what is the discriminant of x^2 + 15x - 1 = 0

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Question 747631: -5/8+(-1/6)
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Question 747631: -5/8+(-1/6)
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Question 749598: Find two expression for the number with negative signs in different places. -5/6. - 8/7. 19/-3
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Question 749614: Divide (-1)^9
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Question 713755: 7+3(9-4)2 / 5 +
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Question 708371: (7*5)+[5/(4/4)]
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Question 708644: what is the smallest set of real numbers which 12 belongs to
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Question 747469: For any positive integer 'n' prove that 'n3-n' is divisible by 6.

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Question 702939: write each rational number as a ratio in the form a/b 1) -3 ??
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Question 749636: how many real number solutions? 4x^2+8x-4=0
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Question 732990: The highest temperature ever recorded in a desert was 105 degrees F. the coldest temperature recorded in a deert was 5 degrees Fahrenheit below zero. State which real numbers correstpind on the situation.
The real number that corresponds to the highest temp. in a desert is ?
The real number that corresponds to the coldest temp. in a desert is ?
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Question 730526: if
"find the value of a^+b^=5ab"
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Question 698304: What is the real number solution for x^4-16=0?
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Question 750283: using -1 as a factor, what is x^2 + 2x + 1/-1 - x in simplified form?
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Question 750353: divided by
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Question 750392: can a negative number be considered a real number ?
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Question 750394: if the sum of two consecutive integers is -15< what is the value of the larger integer?
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Question 750523: 2√3+6√3-4√3
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Question 751315: What two numbers add to be -16 but when multiplied equal 192?
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Question 752221: find rational numbers between 4/9 and 8/11

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Question 731592: 25y^2+15
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Question 700454: It says to write the polynomial in standard form:
x^2-2x-x^6-4
Thank you for your help!
Click here to see answer by tommyt3rd(5050)

Question 700420: 46degree 30minute 10second into radian, what will be the value
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Question 699053: What is the solution for sqrt(2x + 1) + 5 = 2?

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Question 699053: What is the solution for sqrt(2x + 1) + 5 = 2?

Click here to see answer by dkppathak(439)

Question 692792: Find the number of zeroes at the end of 5^(n!) factorial

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Question 742696: What is the slope of the bi nomial 2x+3

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Question 689383: square root of 3 over square root of 11+2
10- square root of 3 over 10+ square root of 3
So concussion over these problems
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Question 745354: f(x)=9/x-7
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Question 725603: 1/4x play tennis sand1/6 play tennis and swimming. how many students just play tennis
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Question 743664: Please help me solve solve this equation: x^2=4
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Question 703428: my problem i'm having trouble with is: 3/4 divided by 3- (-1)=

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Question 752809: please help me with this sum
find the value of a
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Question 754106: is the number 0.686868... rational or irrational or both or neither?
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Question 703731: A student scores 75 and 91 on two different tests of 100 points. If the maximum score on the next test is also 100 points, what score does the student need to maintain an average of at least 80?
I'm clueless with this one as well
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Question 734492: What is the speed in miles per hour of a toy car that runs 40 feet in 8 seconds?

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Question 694760: solve:
6x=2(x-3)=5x-(6-2x)
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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