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Kerry

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  • will someone plesase help me with these simple math questions pretty please...multiple choice?

    Simplify the expression: 4 square root of 48 - 2 square root of 50 + 4 square root of 18

    answer choices: 18 square root 5,

    14 square root 20

    , 8 square root 2,

    -10 square root 3

    16 square root 3 + 2 square root 2

    , 12 square root 3 - 4 square root 2.

    2. simplify the expression: 4a^2bc square root of 48a^3b^7c^2 assume all variables are posative.

    answer choices: 4a^3b^3c square root 3ab

    8a^3b^3c square root 3ab

    4a^3b^4c^2 square root 3abc

    16a^3b^4c^2 square root 3ab

    1 AnswerMathematics10 years ago
  • would appreciate some help on this math.......please and thank you...multiple choice.?

    1. 9/ 8-y + 6/ y-8

    answer choices: 4/ 8-y , 5/ 8-y , -5/y-8 , 15/6

    2. 8/x-2 - 4/ x +2

    answer choices: 4/ x^2 - 4 , 3/4 , 12/ 2x - 4 , 14/ x - 4 , 4x + 24/ (x-2)(x + 2)

    solve.

    3. r + 5/4 = r - 6/3

    answer choices: 12 2/7, 5 4/7 , 9 , 24 , 39

    solve.

    4. 7/5x - 2 = 5/4x

    answer choices: 0, -10/3 , -5, 7, -2/3

    5. 4/y +2/3 = 1

    answer choices: 12, 5, 25/2, -5/3, 3/2

    1 AnswerMathematics10 years ago
  • need help with a few math problems?

    1. The formula to use for this problem is y = k/x. The volume v of a gas varies inversely as the pressure P upon it. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be it's volume under pressure of 40kg?

    answer choices: 160 cm, 154cm, 172cm, 144cm, 138cm

    2. The formula to use for this problem is y= kxz. Find the equation of variation if S varies jointly as r and the square of t, and s=72 when r=5 and t=6.

    answer choices: s= 0.4 rt^2 , s= rt^2, s= 1.5rt^2, s=2.5rt^2, s= 0.2rt^2

    3. The formula to use for this problem is: y = kx. The stopping distance of d of a car after the brakes have been applied varies directly as the square of the speed r. If a car traveling 60 mph can stop in 200ft. how fast can a car go and still stop in 72 ft?

    answer choices: 42, 48, 32, 36, 40

    2 AnswersMathematics10 years ago
  • can someone please help me with these question....multiple choice?

    1. 9/ 8-y + 6/ y-8

    answer choices: 4/ 8-y , 5/ 8-y , -5/y-8 , 15/6

    2. 8/x-2 - 4/ x +2

    answer choices: 4/ x^2 - 4 , 3/4 , 12/ 2x - 4 , 14/ x - 4 , 4x + 24/ (x-2)(x + 2)

    solve.

    3. r + 5/4 = r - 6/3

    answer choices: 12 2/7, 5 4/7 , 9 , 24 , 39

    solve.

    4. 7/5x - 2 = 5/4x

    answer choices: 0, -10/3 , -5, 7, -2/3

    5. 4/y +2/3 = 1

    answer choices: 12, 5, 25/2, -5/3, 3/2

    2 AnswersMathematics10 years ago
  • Please help with a few math problems :) multiple choice...appreciated.?

    1. The formula to use for this problem is y = k/x. The volume v of a gas varies inversely as the pressure P upon it. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be it's volume under pressure of 40kg?

    answer choices: 160 cm, 154cm, 172cm, 144cm, 138cm

    2. The formula to use for this problem is y= kxz. Find the equation of variation if S varies jointly as r and the square of t, and s=72 when r=5 and t=6.

    answer choices: s= 0.4 rt^2 , s= rt^2, s= 1.5rt^2, s=2.5rt^2, s= 0.2rt^2

    3. The formula to use for this problem is: y = kx. The stopping distance of d of a car after the brakes have been applied varies directly as the square of the speed r. If a car traveling 60 mph can stop in 200ft. how fast can a car go and still stop in 72 ft?

    answer choices: 42, 48, 32, 36, 40

    1 AnswerMathematics10 years ago
  • math problems!!!! need help pleassseeee! pleaseeee! multiple choice.?

    1. 9/ 8-y + 6/ y-8

    answer choices: 4/ 8-y , 5/ 8-y , -5/y-8 , 15/6

    2. 8/x-2 - 4/ x +2

    answer choices: 4/ x^2 - 4 , 3/4 , 12/ 2x - 4 , 14/ x - 4 , 4x + 24/ (x-2)(x + 2)

    solve.

    3. r + 5/4 = r - 6/3

    answer choices: 12 2/7, 5 4/7 , 9 , 24 , 39

    solve.

    4. 7/5x - 2 = 5/4x

    answer choices: 0, -10/3 , -5, 7, -2/3

    5. 4/y +2/3 = 1

    answer choices: 12, 5, 25/2, -5/3, 3/2

    1 AnswerMathematics10 years ago
  • a couple of easy math problems in algebra 2.?

    Can someone please solve these problems.

    4x - 3y = -1 you have to solve these two problems together.

    3x - 2y = 0

    what is the standard form of the equation that has a slope of -2 and passes through the point ( -2, 3) ?

    Which expression is the simplest form of 25x^4y^2 - 15x^2y / 5xy

    if x does not = 0 and y does not = 0

    5 AnswersMathematics10 years ago
  • guys!!! do you like selfless girls???

    guys would you rather have a sweet girl that's selfless.... gives to charity's is athletic and cute .....or a girl who has attitude but isnt to rude. Is also pretty and girly.

    1 AnswerSingles & Dating10 years ago
  • Algebra 2 factoring help pleasessseeeeee?

    Need help factoring problems please I want to know if I got them right.

    1. 9/2 - 25/2a^2

    2. 25r ^3w^3+65r ^3w ^3 - 30r ^3w

    3. 3b^2+12b+7

    4. 4wxy - 8x ^2y+10xy^2

    5. y ^4+y^2 - 20

    1 AnswerMathematics10 years ago
  • Algebra 2 helppppppppppp! pleaaaaseeeeeee.....?

    I am just trying to see if I got these correct or not:

    1. 9/2 - 25/2a^2

    2. 25r ^3w^3+65r ^3w ^3 - 30r ^3w

    3. 3b^2+12b+7

    4. 4wxy - 8x ^2y+10xy^2

    5. y ^4+y^2 - 20

    2 AnswersMathematics10 years ago
  • math helpppppppppppppp! square roots?

    ^5 or ^3 means to the fifth power and cubed.

    8 divided by the square root of 5 - 1

    2 times the square root of 48 - 6 times the square root of 12 + 3 times the square root of 75 - the square root of 3.

    square root of 12x ^3 - the square root of 27x^5 + the square root of 3 x ^3 + the square root of 75 x^5

    3 AnswersMathematics10 years ago
  • Math Help!!!!!!!!!!!!!Algebra 2!!!!?

    I need help with some math problems.....I just want to check them and make sure I did them right...

    square root of 28 +square root of 63

    2 - square root of 3 divided by 4 - square root of 3

    3 square root of 50 + 6 square root of 12 - 2 square root of 75 +5 square root of 20

    (4 square root of 2 - 2 square root of 3) squared.

    1 AnswerMathematics10 years ago
  • help with algebra 2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!?

    Please help me with these problem!

    1x-5y>10

    x+3y<9

    y-2=2/3(x-1)

    y-4=2/3(x-4)

    1 AnswerMathematics10 years ago
  • word problem help algebra 2?

    Help I cant figure out these problems for the life of me.

    Martin is 5 times as old as his cat, peewee. in 4 years , he will be 3 times as old as peewee. how old is martin now?

    In a hs chemistry lad, James has two solutions, one containing 15% oil and the other containing 25% oil. How many cubic centimeters of each should he use to make 120 cm (cubed) of a 21% oil solution?

    1 AnswerMathematics10 years ago
  • word problem helpppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!?

    with a tailwind, a plane traveled 1540km in 2.5 hours. The return trip against the wind took 3 hours. FInd the speed of the plane in still air and the speed of the wind.

    1 AnswerMathematics10 years ago
  • helpppppp with mathh!!!!!!!!!!!!!!!!?

    Bob is twice as old as anne. In five years bob will be three years older than anne. How old are they now?

    5 AnswersMathematics10 years ago
  • algebra 2!!!! help!!!!!!!!!!!!!!!!!!!?

    How much 20% and 50% alcohol solutions must be mixed to get 12 gallons of 30% solution?

    I can not figure this out!!! I tried something and got( -1180, 1192)

    1 AnswerMathematics10 years ago
  • word problem help algebra 2 again..........?

    I just need to see if I got this problem right so I can study for my quiz........

    The sum of two numbers is 28. One number is 4 more than twice the other number. What are the numbers?

    4 AnswersMathematics10 years ago
  • Algebra 2 math help...............?

    I want to make sure I got this problem right because I have no way to check it right now and I have a quiz tommorow.....

    Angle A and Angle B are supplementary angles. The measurement of angle A is 9 degrees more than twice the measurement of Angle B. Find the measurement of each angle.

    I got 57 degrees and 123.

    2 AnswersMathematics10 years ago