1. Algebra /Happy Holiday Everyone

    Evaluate the Expression This is combination nCr (9 6 3 ) (6 4 1 ) n! r!(n-r)! I have try everything and came up 1296 and that was wrong. Could someone please help when you have time. Thank You

    asked by Mary Ann on May 23, 2014
  2. math

    A box contains 8 red marbles, 8 green marbles, and 10 black marbles. A sample of 12 marbles is to be picked from the box. How many samples contain exactly 7 red marbles or exactly 6 green marbles? The answer key sets it up as (8 nCr 7)*(18 nCr 5)+(8 nCr

    asked by Dan on October 17, 2018
  3. math

    proof thise for me. nCr=nCr-r 2) nCr+nCr+1=n+1Crr+1

    asked by stanley on February 24, 2013
  4. math

    prove:1) nCr=nCr-r 2) nCr+nCr+1=n+1Crr+1

    asked by stanley on February 23, 2013
  5. Evaluate the expression.Algebra

    Evaluate the expression. (9/6) (6/4) (3/1) I think this are combination I try three different ways, now I am not sure how to do it.

    asked by Mary Ann on May 21, 2014
  6. ALGEBRA

    Evaluate the expression. (8/6) I came up with 28 with the combination formula.Is this correct.

    asked by MONICA on November 23, 2011
  7. Algebra

    Evaluate the express. nCr (9 over 6)(6 over 4)(3 over 1) n 9 6 3 r 6 4 1 I came up with, [10 over 6!(10-6] [6 over 4(4-2!) [3 over 1!(1-1)!] from there I so sorry I don't know where to go. thank you

    asked by Mary Ann on May 22, 2014
  8. Math

    Alex's favorite restaurant is a buffet-style Chinese restaurant downtown. Each time he goes, he chooses 2 appetizers and 1 entree. If the restaurant has four appetizers and 5 entrees to choose from, how many, times could Alex go to the restaurant without

    asked by Tom on April 6, 2014
  9. MATH

    if nCr+2*nCr=nCr4+1*nCr-1

    asked by sara on September 3, 2015
  10. Algebra

    Use symbols to write the expression and then evaluate it Thirty six squared divided by six cubed The given expression symbol is? Evaluate it

    asked by Tammy on September 23, 2012
  11. Advanced Math I

    If a * b = a - 3b and a # b = 2a + 3b, evaluate the expression (4 * 3) # 5. If y # y = 2x + 3y and x * y = 5x + 4y, evaluate the expression 2 # (4 * 3). Please help! Try to explain how I should solve these - don't just give me the answer. These problems

    asked by confused.... on September 8, 2007
  12. Math

    Translate the phrase into an algebraic expression. Five times k A 5k (my answer) B k + 5 C k divided by 5 D 5 - k Evaluate the expression when a = 6 a-24 A - 30 (My answer) B - 18 C 18 D 22 Evaluate the expression when s = 9 and t = 12 2s - t A - 6 B 6 C

    asked by hrn on October 31, 2017
  13. math 115

    1. divide 36/-4= 9 is this correct? 2. evaluate the expression |-5 +3|= -2 is this correct? 3. evaluate the expression ( -6) power of 2 - (16/2) = -2.5 - 8 = 10.5 is this correct? 4. Evalute the expression 45/ 5 X 3 power of 2= 9x9= 81 is this correct? 5.

    asked by Lea on September 5, 2009
  14. algebra

    Let X be a number. Translate the English phrase or sentence into a mathematical expression. Then evaluate the expression for X =8. The expression is ?

    asked by john on January 22, 2015
  15. Math

    Write an algebraic expression for each word phrase on the board. Evaluate each expression for x=2 3 times x=6 Expression: 3x

    asked by Jerald on November 18, 2013
  16. Algebra 2

    Evaluate the following expression for the given values of the variables. 1. (2s - t^2) / (st^2) for s = 5 and t = 3 A: 1/45 or 45 Simplify each expression. 2. -x - 3y + 4x - 9y + 2 A: 3x - 12y + 2 3. -4(-a + 2b) - 3(a - 5b) A: a + 3b 4. 5 - (3m + 2n) A: 5

    asked by Victoria on September 2, 2014
  17. Math PIZZAZZZ

    how does a rodeo star get around?? well if you cant give me an answer can you help me. heres the instructions First Simplify the expression below. Then evaluate the expression for the given value or the variable. Find the simplified expression in the

    asked by Anonymous on August 27, 2009
  18. math 115

    1. evaluate exactly square root 100- square root64 = 10- 8 = 2 is this correct? 2. evaluate the expression |-5 +3|= 2 is this correct? 3. evaluate the expression. (-6)^2 -(16/2)= (-6)^2= 36 is this correct? thank you

    asked by Lea on September 6, 2009
  19. algebra 2 word problem

    1) a fitness club advertises a special for new members. each month of membership cost $19, with an initial enrollment fee of $75.00. write an expression for the total cost. Then evaluate your expression for 8 months of membership i wrote: $75.00 + 19m = ?

    asked by marko on October 20, 2011
  20. MATH URGENT

    Write the calculator key sequence you would use to evaluate each expression. Then evaluate. A.) (1-3)^4/4 B.) (-2)^0+4*17^0 C.) 16-9 (2^3)+(-4)^2 Thank you and I pleeeeese explain how to do this

    asked by SPIKE on January 8, 2013
  21. Math. Need help

    1.if g=5 and k=1, evaluate 9+gk a. 13 b. 14 c. 15 d. 16 2.Evaluate a-b^2/b if a = 10 and b = 2. a. 1 b. 3 c. 8 d. 32 3.Evaluate 3xy^2 - y if x = 2 and y = 5. a. 26 b. 30 c. 120 d. 145 4.Evaluate 2d + d^2/3 if d = 6. a. 4 b. 12 c. 14 d. 24 5.Evaluate

    asked by A. on August 28, 2016
  22. math 115

    1.evalute the expression -8 + 15 = 7 is this answer correct? 2.evaluate the expression 19+(+4) = 23 is this answer correct? 3.Evaluate the expression (13) (-4) (-6) = 312 is this answer correct? 4. evaluate |10|+ |-2| =8 is

    asked by Lea on September 5, 2009
  23. Algebra

    Guess the 4-digit combination. An X stands for a correct digit in its correct place in the combination and an O stands for a correct digit out of its corect order. 8256 OX Two of the four digits 8,2,5,6 appear in the final combination(one in the position

    asked by Matt on April 9, 2011
  24. math

    translate the phrase into a mathematical expression and then evaluate it. sixtten squared divided by four cubed. The given expression in symbols is? (do not simplify. type exponential notation with positive exponents.) Evaluated, the expression is equal

    asked by henry on June 23, 2013
  25. Math

    Evaluate the expression: 4⋅9+6−3 Evaluate the expression: 53−122+25 39 and -44

    asked by Bri on December 18, 2017
  26. ALGEBRA

    Evaluate the expression. (11) (5) (3) 3 3 1 Evaluate the expression. (7) 5 I had 7 as the answer.

    asked by Rose on May 27, 2012
  27. algebra

    Consider the following four polynomials, labeled A - D: A. ( 2x2 - 4x ) B. ( x3 - 1 ) C. ( -3x3 + x2 - 4x ) D. ( x5 + x2 - 3 ) Find an algebraic expression that uses each of the four polynomials once and simplifies to: x8 + 3 Your expression may involve

    asked by Lilly on May 26, 2014
  28. Calculus (Integrals and Derivatives)

    Evaluate the following expression: d/dx (integration sign: upper=1 and lower= -3) (2t^3 + 3)dt = I am given the following options: 2t^3 + 3 56 5 -28.0 None of the above Would the result of the expression be 0 or 5???

    asked by Mishaka on February 15, 2012
  29. Math/ help please

    In another calculation, Rachel needs to evaluate the expression -5fifth root square (- 400^2). What is the value of this expression?

    asked by Kim on November 8, 2017
  30. Calculus

    Evaluate the following expression: d/dx (integration sign: upper=1 and lower= -3) (2t^3 + 3)dt = I am given the following options: 2t^3 + 3 56 5 -28.0 None of the above Would the result of the expression be 0 or 5???

    asked by Mishaka on February 15, 2012
  31. algebra

    ***show work evaluate the expression: 7^-6 (-6)^-9 simplify the expression. write your answer using only positive exponents. 4x^-2*-x -2a^0*a^2

    asked by SoccerStar on April 20, 2011
  32. Alegbra

    Use properties of exponents to simplify the given expression. First express the answer in exponential form. Then evaluate the expression. 3^2 3^3=

    asked by Tim on March 11, 2017
  33. Math

    Write a real world situation that can be represented by the expression 8(t - 3). Tell what the variable represents then give a value for t and evaluate the expression.

    asked by Jamie on April 25, 2016
  34. Math, please help

    Write a real world situation that can be represented by the expression 8(t - 3). Tell what the variable represents then give a value for t and evaluate the expression.

    asked by Mike on April 25, 2016
  35. Math

    Write an numerical expression equivalent to (3) (3) (3) using exponents. Evaluate the expression above

    asked by Amy on February 11, 2015
  36. algebra

    Evaluate the following expression: |2+5+(-11)+4| Notice the vertical bars enclosing the expression can anyone help me.

    asked by norma on July 4, 2010
  37. algebra

    Algebra 1. Use the Distributive Property to simplify the expression. (-1)(4-c) 2. Use the Distributive Property to simplify the expression. 4(2x -4) 3. Use the Distributive Property to simplify the expression. (10 + 4 y) 1/2 4. To which subsets of real

    asked by dfhsh on September 25, 2018
  38. Algebra

    1. Use the Distributive Property to simplify the expression. (-1) (4-c) 2. Use the Distributive Property to simplify the expression. 4 (2 x - 4) 3. Use the Distributive Property to simplify the expression (10+4y) 1/2 4. To which subsets of real numbers

    asked by PolkaDot on October 14, 2016
  39. Algebra

    1. Use the Distributive Property to simplify the expression. (-1)(4-c) 2. Use the Distributive Property to simplify the expression. 4(2x -4) 3. Use the Distributive Property to simplify the expression. (10 + 4 y) 1/2 4. To which subsets of real numbers

    asked by PolkaDot on October 7, 2016
  40. trigonometry

    Evaluate the following expression. Your answer must be in exact form: for example, type pi/6 for π6 or DNE if the expression is undefined. arctan(tan(−31π6))

    asked by Dan on May 2, 2015
  41. Algebra

    Evaluate the expression.(50) How do I solve this expression? Can you show work. Thanks.

    asked by Mike P on January 31, 2013
  42. College Math

    Simplify the algebraic expression 3z3 – 5x2 + 2 – 4y2 + 6x2 – 4z3 – 7y + 12 – 2x and evaluate it for x = -2, y = -3, z = -4. Identify the variables, constants, and coefficients in the simplified expression.

    asked by Richard D on October 11, 2012
  43. College Math

    Simplify the algebraic expression 3xz + 4xy – 2yz + xy + 5yz – 9xz and evaluate it for x = 3, y = -2, z = -5. Identify the variables, constants, and coefficients in the simplified expression.

    asked by Richard D on October 11, 2012
  44. math (this correct)

    What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for your

    asked by scooby9132002 on May 5, 2009
  45. Math

    You and six friends go to a movie. The tickets cost $7.50 each. You each buy a drink for $2.00 and a box of popcorn for $3.75. Write an expression that represents the total amount of money spent. Then evaluate the expression.

    asked by Anonymous on September 6, 2018
  46. chemistry-confirm please

    Only a chemist can be trusted with the combination to the safe containing a ton of money. The combination is the pH of solution A, followed by the pH of solution C. (for example: is the pH of solution A is 3.47 and the pH of solution C is 8.15 the

    asked by Tom on May 25, 2008
  47. statistics

    Are these using nCr? If not what formula do I use? P(20,x,23)= P(x.23)=

    asked by Amy on October 30, 2013
  48. Math

    1. Which expression is equivalent to (-2)(a+6)? A. -2a+6 B. 2a+12 C. -2a-12*** D. -2a+12 2. To which sets of real numbers does the number -22 belong? Choose all subsets that apply. (There's two right answers) Whole Numbers Rational Numbers*** Integers***

    asked by EmberShy on January 11, 2017
  49. math ,correction

    consider determining how many possible phone numbers are in an area code (repeated numbers allowed) is this a combination, permutation or neither.... my answer neither combination. combination. wouldn't it be neither because we are allowed to use repeated

    asked by student on July 15, 2007
  50. Math

    What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for your

    asked by scooby9132002 on May 5, 2009
  51. math/algebra

    please check my answers Suppose that the temperature outside is dropping at a constant rate. At noon, the temperature is 70 F and it drops to 58 F at 5 p.m. How much did the temperature change each hour? 12/5=2.4 degrees per hour. Evaluate the expression

    asked by allen on November 27, 2007
  52. Gr. 10 Math

    Evaluate each expression for the given value(s) of the variable(s). 2x^2 - 3xy + 4y^2 for x=2, y=-1 My Answer: (2(2^2)) - (3*2*-1) + (4(-1^2)) = 10 Text Book Answer: 18 Please help. Am I doing something wrong? I redid the expression 3 times and still got

    asked by John on April 20, 2010
  53. Math

    Can you guys please check my answers? Evaluate x/y for x = 2/3 and y =6/7 1. 7/9 2. 8/10*** 3. 9/12 4. 12/21 Simplify the expression (3/7^2) 1. 3/7 2. 6/14 3. 9/49*** 4. 5/9 What is the simplified form of the expression 7[63 ÷ (52 – 22) – 1]? 1. 10 2.

    asked by unknownchild on January 10, 2018
  54. Math

    you want to buy a newly released CD . the CD costs $17. plus 6percent tax. write an expression that represents how much money in dollars you need to buy the CD . evaluate the expression

    asked by Sage on October 4, 2011
  55. math

    is zero a multiple of every number? Find the prime factorization of the number, and write it in exponent form. 198 Compute the value of the given expression. _|8|_ |11-8| Evaluate the expression. -8x + 8y, for x = 8 and y = -1

    asked by Anonymous on February 23, 2011
  56. math

    A hiking club charges an initial fee of $60 and then $12 for each hiking trip. Write an expression to model the total cost and then evaluate the expression for 4 hikes.

    asked by rona on February 24, 2015
  57. algebra

    Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. 4logbx - logby

    asked by ada on December 5, 2014
  58. Pre-Algebra

    Evaluate the expression. 1. (18 + 9) + 11 2. 8(-2)(5) 3. 1.2 + 4.7 + 1.5 Simplify the expression. 4. t + 24 + 17 5.-8 + c + (-10) 6.4(6x)

    asked by Amy on October 14, 2011
  59. math

    Catherine needs to evaluate the expression below 7+4(-6) What is the value of this expression A. -17

    asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! on May 28, 2014
  60. Math

    nPr=6720 and nCr=56, then the value if r is___?

    asked by Helen on July 8, 2015
  61. Algebra

    1.) Use the distributive Property to simplify the expression . (-1)(4 - c) A. 4 - c B. -4 + c C. 4 + c D.-4 - c 2.)Use the distributive Property to simplify the expression 4(2x - 4) A.8x + 4 B.8x - 4 C.8x - 16 D.4x - 16 3.) Use the distributive Property to

    asked by Math is going to be the death of me on September 5, 2018
  62. college algebra

    Use properties of logarithms to condense the logarithmic expression. Wreite the expression as a simple logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. Inx + In 15 Please show work

    asked by Ladybug on November 28, 2012
  63. math

    Algebra 1.) Use the distributive Property to simplify the expression . (-1)(4 - c) A. 4 - c B. -4 + c C. 4 + c D.-4 - c 2.)Use the distributive Property to simplify the expression 4(2x - 4) A.8x + 4 B.8x - 4 C.8x - 16 D.4x - 16 3.) Use the distributive

    asked by dfhsh on September 13, 2018
  64. URGENTquestions for Math

    A pair of jeans is on sale for 25% off the original price. Which expression represents the sale price? If the original price of the jeans is $40,evaluate the expression to find the sale price. s=p-0.25 p;$30 s=p-25:$15*** s=p-0.25p;$10 s=p-0.25;$39.75

    asked by Gabby on September 3, 2013
  65. Algebra

    Scientists want to set up and test animals in the area for West Nile. The costs to test are $2,200 for setup plus $1.50 to administer each test. Write an expression that gives the total cost to test x animals. Hint: An expression is a combination of known

    asked by Joisey girl on December 13, 2011
  66. 3rd grade math

    Write an expression that equals 468 that includes a combination that adds up to 100

    asked by Megan on March 16, 2010
  67. algebra

    ^ = exponent **show work please A sheet of 67-pound paper has a thickness of 100^-1 inch. a. write and evaluate an expression for the total thickness of 5 sheets of 67-pound paper b. write and evaluate an expression for the total thickness of 2^3 sheets of

    asked by SoccerStar on April 20, 2011
  68. Algebra 1

    Suppose the growth of a population (in thousands) is represented by the expression 32*2.1^x, where x represents the number of years since 2010. Evaluate the expression for the year 2015. Round to the nearest whole number. a. 41 b. 1,307 c. 67 d. 622

    asked by Chloe on January 25, 2017
  69. Algebra

    Suppose the growth of a population (in thousands) is represented by the expression 32 * 2.1^x where x represents the number of years since 2010. Evaluate the expression for they year 2015. Round to the nearest whole number. A. 41 B. 1,307 C. 67 D. 622 Is

    asked by Carmen on February 4, 2016
  70. Math

    Suppose the growth of a population (in thousands) is represented by the expression 32 * 2.1^x where x represents the number of years since 2010. Evaluate the expression for they year 2015. Round to the nearest whole number. A. 41 B. 1,307 C. 67 D. 622 Is

    asked by Carmen on February 4, 2016
  71. algebra

    Evaluate the following. 4*4-14/2+6 =15 Evaluate the following expression. 2*[1+(19+13)/4] =18 Evaluate. 50+25/5^2 = 51

    asked by PLS Check on May 6, 2012
  72. math

    Evaluate the combination. its in parentheses with the ten on top, and the 6 on the bottom, they are both in the same set of parentheses (10) (6 ) a. 5040 b. 210 c. 75,600 d. 48

    asked by Dana on May 4, 2008
  73. Algebra HELP!

    If a sum of money is deposited in a savings account that is paying x percent annual interest (expressed as a decimal), then this sum of money increased by a factor of (1+x)^3 after 3 years. A. multiply this expression B. Evaluate the polynomial expression

    asked by Adriana on June 11, 2012
  74. HELP PLZ

    1. Milo bought pounds of red apples and pounds of green apples to make applesauce. How many pounds of apples did he buy in all? a. Write an expression that models the problem. b. What is the LCD of the fractions in your expression? Explain how you found

    asked by mary ann on December 17, 2013
  75. URGENT MATH

    A pair of jeans is on sale for 25% off the original price. Which expression represents the sale price? If the original price of the jeans is $40,evaluate the expression to find the sale price. s=p-0.25 p;$30 s=p-25:$15*** s=p-0.25p;$10 s=p-0.25;$39.75

    asked by Gabby on September 3, 2013
  76. Math

    Let me know if I'm correct please For exercises 1 and 2 translate each phrase into an algebraic expression The difference of a number and sixteen n+16 n-16

    asked by AABBCC on October 13, 2015
  77. Math

    During a track meet Kelly throws the shotput 51 feet, 50 feet,and 58 feet. Write an expression that represents the length of her average throw in feet. Evaluate the expression.

    asked by Valerie on August 27, 2015
  78. Math

    The expression 3 x n can be written 3n. Use n= 1,2,3 ..., 10 to evaluate the expression. Describe the set of ten numbers. Suppose the sequence continues ror values of n greater than 10. Do the numbers 12, 21, 30 or 210 appeae in the sequence?

    asked by Sally on August 28, 2017
  79. Calculus AP

    Let R be the region in the first quadrant bounded by the graph y=3-√x the horizontal line y=1, and the y-axis as shown in the figure to the right. Please show all work. 1. Find the area of R 2. Write but do not evaluate, an integral expression that gives

    asked by Jess on March 1, 2013
  80. 6th grade

    write an expression for the area of this rectangle 20cm on the top 4cm on the right at the top and 8cm on the left.evaluate your expression to find the area.

    asked by mahogany on September 20, 2009
  81. intermediate algebra-can somebody check my answer

    Evaluate the expression m^2+93+7 when m=-4 -4^2+9*(-4)+7 does it = -13

    asked by Rachal on February 15, 2011
  82. Algebra

    evaluate the expression -c + 7b when c = -2 and b = 5

    asked by Barney on November 10, 2007
  83. Math

    C=-3 and d=-6 Evaluate the expression -c - (-d)

    asked by Sheshe on September 6, 2011
  84. maths-definite integral

    evaluate the following expression at z=5 d/dz ¡Ò[z to 2] (3+x^2)dx

    asked by May on October 19, 2010
  85. math

    Evaluate the expression. 11! 6! 4! 2! 3! 1!

    asked by libby on November 30, 2014
  86. Algebra

    Evaluate the expression -c + 7b when c = -2 and b =5

    asked by Barney on November 9, 2007
  87. Math

    Evaluate the expression 8–^2 x 40 a.16 b.64 c.–64 d.1/64 ****

    asked by PLZ HELP ME on October 2, 2015
  88. HELP PLZ WITH MATH

    Evaluate the expression 8–^2 x 4^0 a.16 b.64 c.–64 d.1/64 ****

    asked by PLZ HELP ME on October 2, 2015
  89. math

    evaluate the expression (94) 93 a. 94 b. 93 c. 1 d. 88 e. -5

    asked by lottie on August 30, 2016
  90. math

    how do you evaluate this expression 14.6+[(42-21.4)*35]

    asked by shion on April 27, 2012
  91. algebra need help

    Evaluate each expression. 3x^2-2x+1 if x=5 3a^2b^3 if a=2, b=-3

    asked by kate on February 8, 2009
  92. maths

    evaluate the expression (94) (93) a. 94 b. 93 c. 1 d. 88 e. -5

    asked by jessie on August 31, 2016
  93. math

    Evaluate the expression: s = 8; 6s^2

    asked by Miguel on July 24, 2016
  94. Math

    evaluate the expression 2x-3y-4z x=7 y=-3 z=-1

    asked by christopher on April 30, 2010
  95. ALGEBRA

    Evaluate the expression. \( _5^9 \) \( _2^4 \) \( _1^4 \)

    asked by Urgen please help on June 14, 2012
  96. Maths

    Evaluate the following expression when a = 7 and b =  − 3.

    asked by Lizzie on December 18, 2010
  97. Math

    Evaluate the expression when c=-2 and y=7. -y+7c

    asked by Barry Vacker on February 5, 2019
  98. Math

    4x+5y X=6 y=17 evaluate the expression

    asked by Anonymous on January 22, 2014
  99. Math

    4x+5y X=6 y=17 evaluate the expression

    asked by Anonymous on January 22, 2014
  100. math

    how do you evaluate this expression 18.9-[(33.3~11.1)*6]

    asked by shion on April 27, 2012