1. Math

    A function is created to represent the height above sea level of a mountain climber every hour. What restrictions would be made to the range? A-range includes all real numbers B-range includes positive integers C-range includes positive real numbers D-range includes negitive ...
  2. Algebra

    Need help with these: 12. Name the property: 8 + 3.4= 3.4 + 8 a. Inverse Property of Addition b. Associative Property of Addition c. Commutative Property of Addition d. Inverse Property of Multiplication I think the answer is C 16. The standard form for a linear equation is ...
  3. algebra

    Find the domain and range of the function. 1. f(x)= x^2-x I got: Domain= All Real Numbers Range= All Real Numbers > -1 (with a line under the greater than sign) 2. f(x)= 1-x^2 I got: Domain= All Real Numbers Range= All Real Numbers < 1 (with a line under the less than ...
  4. Math

    What is the domain and range fro the expentiral function f(x)=-2x4^x-1+3? Domain:all real numbers Range:all real numbers less than 3 Domain:all real numbers Range:all real numbers greater than 3 Domain: all real numbers greater than-2 Range: all real numbers less than 3 Domain...
  5. Algebra 1-- Please, check my answers!

    1. What is ((-12x^6 + x)) / ((-4x^2))? A: 3x^4 - 1/4x 2. What is the greatest common factor of the terms of the polynomial 6x^3 - 18x^2 + 12x + 3? A: 3? 3. Which is a solution to n/n+2 = -8/n? a. -4 b. -2 c. 2 d. 4 A: a? 4. Which of the following is equivalent to ((2x^5y^2)/(...
  6. Algebra

    55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: -2 + (10+1) = (-2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d. Associative Property of ...
  7. Algebra

    55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: -2 + (10+1) = (-2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d. Associative Property of ...
  8. Algebra

    55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: -2 + (10+1) = (-2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d. Associative Property of ...
  9. Algebra

    55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: -2 + (10+1) = (-2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d. Associative Property of ...
  10. algebra

    Find the domain and range of the relation and determine whether it is a function? Answers are Domain x>1 range y>0yes it is a function Domain all real numbers,range all real numbers yes it is a function Domain positive integers, range positive integers no it is not a ...
  11. Algebra

    23. The ___ axis represents the independent variable. X? 21. Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above I'm not sure 27. The ...
  12. Math

    Find the domain and range for y=x^2+9. Wouldn't the domain and range just be all real numbers since nothing else is really given in the equation? How would you enter "all real numbers" in interval notation? Would it include the infinity sign?
  13. Algebra

    28. Use the Distributive Property to simplify x(4x^2 + x + 4) Is it 4x^3 + x^2 + 4x? 42. To which set of numbers does 0 not belong? 46. Pi belongs to which group of real numbers? a. Odd numbers b. rational numbers c. irrational numbers C? 48. Can a number be both irrational ...
  14. math

    Find the domain and range for y=x^2+9. Is the answer all real numbers? How would you enter that in interval notation? From Googling the definition of real numbers, I now understand that the infinity sign would not be included. For a continuous function you use closed brackets...
  15. Algebra

    The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 and 2. Determine the domain and range of the function. a. D: all real numbers R: all real numbers b. D: all real numbers R: y ≤ 4 c. D: -6 ≤ x ≤ 2 R: y ≤ 4 d. D: x ≤ 4 R: all ...
  16. alebra

    Let f(x)=2x^2+x-3 and g(x)=x-1. Perform the indicated operation then find the domain. (f*g)(x) a.2x^3-x^2-4x+3; domain:all real numbers b.2x^3+x^2-3x; domain: all real numbers c.2x^3+x^2+4x-3; domain: negative real numbers d.2x^3+x-3x+3; domain: positive real numbers
  17. Algebra

    57. Find the domain of: y= 5 _____ 2x+24 a. all real numbers except 12 b. all real numbers except 0.08 c. all real numbers except -0.08 d. all real numbers except -12 I still don't get how to do these, and this one looks even more complicated than the others.
  18. Algebra 2

    3. Identify the vertex and the axis of symmetry of the graph of the function y = 3(x + 2)2 – 3. (1 point) A- vertex: (2, –3); axis of symmetry: x = 2 B- vertex: (–2, –3); axis of symmetry: x = –2 C- vertex: (2, 3); axis of symmetry: x = 2 D- vertex: (–2, 3); axis ...
  19. Algebra (need help ASAP!!!!)

    I didn't get how to do the problem. In my book it says to choose a variable and write an absolute value inequality that represents each set of numbers. Here are the problems I had-- all real numbers less than 2 units from 0 all real numbers less than 1 unit from -4 I need to ...
  20. Discreet Mathematical Structures

    Use proof by contraposition to prove the following statement: If A is the average of two positive real numbers then one of the two numbers is greater than or equal to A. Proof. Domain: positive real numbers P: A=(x+y)/2 Q: x is greater than or equal to A or y is greater than ...
  21. MATH HELP

    What is the simplified form of the expression? Hint: Combine like terms 7m2 + 6.5n – 4n +2.5m2 – n A)9.5m2 + 1.5n B)4.5m2 + 1.5n C) 9.5m2 – 1.5n Which property is illustrated by the statement? 8 + 3.4 = 3.4 + 8 A)Associative Property of Addition B) Commutative Property ...
  22. Math

    Find the domain and range of the inverse f(x)=-4x-2 y=-4x-2 x=-4y-2 x+2/-4=-4y/-4 f(x)=x+2/-4 answer: domain (all real numbers) range (all real numbers)
  23. Algebra. Formalizing relations and functions

    1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8} B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/
  24. Math

    Which set of best describes the numbers used on a scale for a standard thermometer? A.whole numbers B.rational numbers C.real numbers D.integers I choose Real Numbers if I am incorrect can you explain why.
  25. Math

    Did I do this right? Find the domain and range f(x)=-4x-2 y=-4x-2 x=-4y-2 x+2/-4=-4y/-4 f(x)=x+2/-4 answer: domain (all real numbers) range (all real numbers)
  26. Math

    Find the domain and range of the inverse f(x)=-4x-2 y=-4x-2 x=-4y-2 x+2/-4=-4y/-4 f(x)=x+2/-4 domain (all real numbers) range (all real numbers)
  27. math

    what is the range of the relation below? ((1,2)(3,4)(5,6)(7,8)) a)all real numbers b) all even numbers c)(2,4,6,8) d)(1,3,5,7) I am confused because I thought the range was the highest - the lowest number. so if it was the highest 8-1, the lowest, the answer would be 7. if you...
  28. Algebra 2 Could use help asap

    I really am trying to work these problems out on my own. Please help If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3x^2) - (1/6+x) 3x^2-x-6 x is all real numbers and x is not ...
  29. algebra

    find five numbers with a mean of 16, a median of 15 a mode of 21 and a range of 11. hi Anna i hope this helps median is the middle number . mean is all the numbers added up then divided by the amount of numbers. mode is the number that occurs most often. range is the lowest ...
  30. Math

    Write the equation of a function with the following requirements: A domain of all real numbers over 3, a range of all real numbers, an x-intercept of (5,0), and a vertical asymptote at x = 3.
  31. math 116

    What is the difference between domain and range? The domain of a function is the set of all values for the independent variable (in the following example, that's the x) for which the function is defined. That is, if you have a function such as f(x) = 1/x Then this function is ...
  32. math check my answer ?

    What is the range of f(x)=−3x−1? the set of real numbers less than 0 the set of real numbers greater than 0 the set of real numbers greater than −1 the set of real numbers less than −1 <my choice
  33. Algebra

    Please let me know if i answered these correctly thanks 1.Which property of the real numbers is illustrated by the following statement? 4(3x) = (4 ∙ 3)x answer: distributive property 2. Which property of the real numbers is illustrated by the following statement? 8(c + ...
  34. math

    The range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter example to her statement?
  35. Algebra II

    Given no other restrictions, what are the domain and range of the following function? f(x)=x^2-2x+2 A. D= all real numbers R={y|y>=1} B. R=all real numbers D={x|x>=1} I think it is A...?
  36. Precalc

    To which set(s) of numbers does the number sqrt -16 belong? Select all that apply. real numbers complex numbers*** rational numbers imaginary numbers*** irrational numbers I can only pick two, and that's what I think it is. Please check? Thanks
  37. Discrete Math

    Determine the domain and range of: y = 5 – [1/ (1 + x)] So, would the domain be all real numbers except -1? And would the range be all real numbers except zero? I'm really confused. . .
  38. Math

    find f(-3) for f(x)= 3x-x^2 f(-3)=0 f(-3)=18 f(-3)=-18<--- f(-3)=-15 What is the range of f(x)? f(x)=|x+1| All real numbers greater than 0 All real numbers greater than -1 All real numbers greater than or equal to 0<- All real numbers greater than or equal to -1 f(x)=4x^...
  39. math

    Need to find the real number. Someone performed a trade of 20,000 less than it made, this caused a negative trade balance. To represent the quanity as a real number when I know that a positive real number names the points to the right of 0 on the number line and negative ...
  40. Algebra 1

    Find the property of the real numbers which will complete the argument below: 1. Zero is not a positive number. 2. Choose x as the smallest number. 3. The ________ property tells us that _________. 4. Therefore, between x and 0 there will be a third number, smaller than x. 5. ...
  41. math mrs sue please help

    Find the property of the real numbers which will complete the argument below: 1. Zero is not a positive number. 2. Choose x as the smallest number. 3. The ________ property tells us that _________. 4. Therefore, between x and 0 there will be a third number, smaller than x. 5. ...
  42. Math

    Question: 1 The product of two positive numbers is 15876 and the large one is 9 times the other. Find the numbers. Question:2 Th sum of the squares of two positive whole numbers is 794. If one of the numbers is 13 , find the other.
  43. 11th grade maths

    A.give an example of a function whose domain is {3,4,7,9}? and whose range is {-1,0,3} B.Find two different functions whose domain is {3,8}and whose range is {-4,1} C Explain why there does not exist a function whose domain is {-1,0,3} and whose range is [3,4,7,9} D.Give an ...
  44. Algebra II

    I have a question- The range of y = 1/(x-5) is All real Numbers True or False I think it is false because it should be all real numbers except y shouldn't equal 0. Is that correct or don't I understand it-Please explain if I'm wrong. Thanks
  45. math

    describe the solutions of 4<or=n+2 mult. choice a all real numbers greater than 4 b all real numbers greater than or equal to 2 c real numbers less than 2 d all real numbers less than or equal to 4 I got b not sure how to show the work to prove it Thanks for your help
  46. Algebra :P... again

    Hi! Sorry.. but 1 more question? Direction: Find the domain of the function. Problem: y = - 1 0 / 1 1 - x [A] All real numbers except x= -11 [B] All real numbers except x= 0 [C] All real numbers except x= 10 [D] All real numbers except x= 11 Also.... if the person answering ...
  47. math

    Nancy made the following statement: The range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter example to her statement? b = 0 a = 0 b < 0 a < 0 i think its a=0 please help
  48. math

    Nancy made the following statement: The range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter example to her statement?
  49. URGENT ALGEBRA 2

    identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or minimum value and the ...
  50. algebra can someone help my buddy ray out

    identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or minimum value and the ...
  51. math

    to which subsets of real numbers does the number -22 belong? choose all that apply a) whole numbers b) rational numbers c) integers d) irrational numbers e) natural numbers
  52. AiMS MATH

    -5 Is A Member Of Which Subset Of Real Numbers. a) natural numbers b) whole numbers c) intergers d) rational numbers e) irrational numbers
  53. Technology

    1. What function would you use to find the mean in a microsoft(R) excel document A. ROUND B. AVERAGE •• C. SUM D. HYPERLINK 2. What is the first thing you should do to find the mean and range of data? A. put the numbers in order from least to greatest •• B. count the ...
  54. Education and technology

    1. What function would you use to find the mean in a microsoft(R) excel document a=ROUND b=AVERAGE c=SUM d=HYPERLINK 2. What is the first thing you should do to find the mean and range of data? a=put the numbers in order from least to greatest b=count the numbers c= add the ...
  55. technoligy

    1. What function would you use to find the mean in a microsoft(R) excel document a=ROUND b=AVERAGE c=SUM d=HYPERLINK 2. What is the first thing you should do to find the mean and range of data? a=put the numbers in order from least to greatest b=count the numbers c= add the ...
  56. technoligy

    1. What function would you use to find the mean in a microsoft(R) excel document a=ROUND b=AVERAGE c=SUM d=HYPERLINK 2. What is the first thing you should do to find the mean and range of data? a=put the numbers in order from least to greatest b=count the numbers c= add the ...
  57. technoligy

    1. What function would you use to find the mean in a microsoft(R) excel document a=ROUND b=AVERAGE c=SUM d=HYPERLINK 2. What is the first thing you should do to find the mean and range of data? a=put the numbers in order from least to greatest b=count the numbers c= add the ...
  58. algebra

    Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range? domain;all real numbers range;-4<=4<=4 2) graph 4x^2+y^2=9. what are its lines of symmetry? it has two lines of symmetry, the x axis and the y axis 3...
  59. Algebra help please

    Let f(x) = 3x - 6 and g(x) = x - 2. Find f/g and its domain. A. 3; all real numbers B. 3; all real numbers except x = 2 C. -3; all real numbers except x = 3 D. 1; all real numbers B ?
  60. Math

    i^6 = (i^2)^3 = (-1)^3 = -1 The square, not the square root of -1 is 1. :) B.t.w., can you prove that -1 times -1 is 1? Hint, try to prove first that for any number X: -1 times X equals -X How do you find the square root of -1? The square of any real number is alwayspositive. ...
  61. algebra

    What are the vertex, axis of symmetry, maximum or minimum value, and range of y=-5(x+2)^2-8? please explain to me how you would solve this..I don't really understand. The answer is given.. The vertex is (-2, -8); the axis of symmetry is x= -2; k= -8 is the maximum value; the ...
  62. Math

    Assume that f is a continuous function from the real numbers to the real numbers such that for all numbers x,y, and a it is true that f(x+y)=f(x) + f(y) and that f(ax)=af(x). Further assume that f(1) = pi. Find f'(-1). Please explain your reasoning. I am so confused. Ive read ...
  63. Math

    Which expression is equivalent to (-2)(a+6)? -2a+6 2a+12*** -2a-12 -2a+12 To which subsets of real numbers does the number -22 belong? Choose all that apply. Whole numbers*** rational numbers integers*** irrational numbers "6 times the difference of b and p?" 6b-p 6(b-p)*** 6-...
  64. Algebra

    To which subset of real numbers does the following number belong? square root of 7 A)rational numbers B)irrational numbers****** C)whole numbers, integers, rational numbers D)whole numbers, natural numbers, integers
  65. algebra

    Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7answers are distributive property, associative property multiplication, communicative property, associative addition
  66. Algebra2

    Name the property of real numbers for -2(x+4)=-2x-8 associative property of multiplication communitive property of addition distributive property associate property of addition my answer is distributive property
  67. algebra

    the equation is f(x) = (1/sq. root of 1-x^2) 1. f(x) is never zero. 2. 0 is in the domain of f 3. All negative real numbers are in the domain of f 4. All positive real numbers are in the domain of f 5. 1 is in the domain of f 6. f(x) is never negative 7. f(x) is never positive...
  68. Algebra plz help

    1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/ 2.Determain whether the following relation ...
  69. calculus

    Find a rational function f : R → R with range f(R) = [-1, 1]. (Thus f(x) = P(x) /Q(x) for all x belongs R for suitable polynomials P and Q where Q has no real root). R(real numbers)
  70. Math

    Please double check Real Numbers and Order |4| + |3| Answer: 7 |-9| - |4| Answer: 5 Adding Real Numbers 7+ (-9) + (-5) + 6 Answer: 17 |-27 + 14| Answer: 13 Subtracting Real Numbers –1/2 – (-5/8) Answer: 2 –3.4 – (-7.6) Answer: -4.2 –54 – 119 Answer: 65 Multiplying ...
  71. algebra

    Name the property of real numbers illustrated by the equation 2·(8·7)=(2·8)·7 answers are. Distributive property ,associative property multiplication, Communicative property multiplication, Associative property addition
  72. algebra

    Name the property of real numbers illustrated by the equation 2·(8·7)=(2·8)·7 answers are distributive property, Associative property multiplication, Communicative property multiplication , Associative property addition
  73. Algebra

    1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/ 2.Determain whether the following relation ...
  74. finding numbers

    The sum of two positive numbers is 20. Find the numbers if the sum of their squares is as large as possible; as small as possible. What does it mean? This is from applications of derivatives. How do I solve this. Two numbers, x, and 20-x Sumsquares= x^2 + (20-x)^2 is max. Take...
  75. Algebra 1

    To which subsets of real numbers does the number –22 belong? Choose all subsets that apply. whole numbers** rational numbers integers** irrational numbers natural numbers Maximum choice is 2
  76. Algebra

    Name the property of real numbers illustrated by the equation. -4(x + 3) = -4x - 12 A. Associative Property of Multiplication B. Associative Property of Addition C. Distributive Property D. Commutative Property of Addition B or A ? I think its B
  77. Algerba II

    Hi Do decimals such as 2.718 represent rational numbers or irrational numbers. Explain. Do repeating decimals such as 2.3333 . . . represent rational numbers or irrational numbers? Explain. So I look back in my textbook and find rational numbers (e.g., 4/5, -2/3, 7.31, -5, ...
  78. 11th grade mths

    Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n ...
  79. Algebra

    To which subsets of real numbers does -22 belong in? A.) whole numbers B.) rational numbers C.) integers * D.) irrational number * E.) natural numbers
  80. Math

    The twice–differentiable function f is defined for all real numbers and satisfies the following conditions: f(0)=3 f′(0)=5 f″(0)=7 a)The function g is given by g(x)=e^ax+f(x) for all real numbers, where a is a constant. Find g ′(0) and g ″(0) in terms...
  81. Math

    There are three distinct ways to add four positive odd numbers to obtain 10: 1 + 1 + 3 + 5 = 10 1 + 1 + 1 + 7 = 10 1 + 3 + 3 + 3 = 10 Here, distinct means that changing the order of the numbers on the left-hand side of an equation does not count as a new solution. In how many ...
  82. math

    The equation 6x-7y=5 has a unique solution if x, y are: 1) Real numbers 2) Rational numbers 3) Irrational numbers 4) Natural numbers
  83. math

    The set S has the property that if a is in S, then a squared + a is also in S. What set could be S? The answer is {1,0}. How do you get this answer? What numbers squared are itself? one and zero But what exactly is a set and what is a? I'm not sure, because the way you've ...
  84. Real Analysis

    Let a be a real number and let m, n be natural numbers such that m < n. Prove that if 0 < a < 1 --> a^n < a^m < 1. So, what I thought to start was: since 0 < a 0 < a^n Also a < 1, a^n < 1. By the property of real #s where if a < b there is a ...
  85. Math

    If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3x^2) - (1/6+x) 3x^2 -6-x x is all real numbers and x is not equal to -6 (f x g) (x) I do not understand (f/g) (x) 3x^2/6-x x is ...
  86. Algebra 2

    If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3^2) - (1/6+x) 3^2 -6-x x is all real numbers and x is not equal to -6 (f x g) (x) I do not understand (f/g) (x) 3^2/6-x x is all ...
  87. sorry left out a "x"

    If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3^2) - (1/6+x) 3^2 -6-x x is all real numbers and x is not equal to -6 (f x g) (x) I do not understand (f/g) (x) 3^2/6-x x is all ...
  88. Math

    A Quadratic Word Problem. The difference between two positive numbers is 3. The sum of the squares of the numbers is 89. Find the numbers.
  89. programming

    for a list of numbers entered by the user and terminated by 0, find the sum of the positive numbers and the negative numbers
  90. maths

    the sumof three positive numbers is 26.the second number is 3times as large as the first.if te sum of the squares of these numbers is least find the numbers
  91. Math

    Given f(x)= |x-1|/x^2-25 please determine the domain. Thank you! A. All real numbers except -5 and 5 B. All real numbers except -5,0 and 5 C. All real numbers except 0 D. All real numbers except 0 and 5
  92. Math

    Please double check me Dividing Real Numbers (-9)(5)/3 Answer: 15 4 – (-3) +1 / 2 –2 / (-2) Answer: 2 16 / (-2) * (-4) / 2 3power + 4 Answer: 6 Subtracting Real Numbers –1/2 – (-5/8) Answer: 2 –3.4 – (-7.6) Answer: -4.2 –54 – 119 Answer: 65 Adding Real Numbers ...
  93. Calculus

    The product of 2 positive numbers is 48. find the value of the numbers if the sum of one of the numbers and the cube of the other is a minimum.
  94. math question

    sheila made the following statement: the range of f(x) = ax + b is the set of all numbers given that a and b are real numbers. which produces a counter example to her statement? a=0 b=0 a<0 b<0
  95. Math

    A book called The Penguin Dictionary of Curious and Interesting Numbers by David Wells (1986) contains fascinating numbers and their properties. One of which is the only 3-digit numbers that are prime and all rearrangements of their digit are also prime are 113,119, and 337. ...
  96. math

    the equation is f(x) = (1/sq. root of 1-x^2) 1. f(x) is never zero. 2. 0 is in the domain of f 3. All negative real numbers are in the domain of f 4. All positive real numbers are in the domain of f 5. 1 is in the domain of f 6. f(x) is never negative 7. f(x) is never positive...
  97. Algebra

    Suppose that x and y are positive real numbers satisfying x^2 +y^2 =4xy . Then x−y/x+y can be written as ãa/b, where a and b are coprime positive integers. Find a+b .
  98. statistics

    400 draws are made at random with replacement from 5 tickets that are marked -2, -1, 0, 1, and 2 respectively. Find the expected value of: 1. the number of times positive numbers appear 2. the sum of all the numbers drawn 3. the sum of the positive numbers drawn
  99. Algebra

    Find all x-values such that f(x)=-4 x=__? What is the range? a)y|-oo<y<_0 b)All real numbers c)y|-10<y<_10 d)y|0<_y<oo
  100. programming

    Problem 6.9 Lottery Number Generator A lottery commission offers four different lottery games to play: Three-number, Four-number, Five-number and Five-number + 1 lotteries. Each game has independent numbers. Develop an application that randomly picks numbers for all four games...
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