• Need help with chemistry?

    N2(g) +3H2(gas)--> 2NH3(g) how many moles of nitrogen molecules are used to produce two moles of ammonia molecules
    N2(g) +3H2(gas)--> 2NH3(g) how many moles of nitrogen molecules are used to produce two moles of ammonia molecules
    4 answers · Chemistry · 6 months ago
  • Can someone please recommend me a really good book?

    I loved the immortal instruments series, the hunger games and the divergent series
    I loved the immortal instruments series, the hunger games and the divergent series
    8 answers · Books & Authors · 7 months ago
  • Can someone help me with this math problem?

    Calculate the dimensions, in ft, of a cylindrical drum that can hold 15 gal of oil with a minimum surface area.
    Calculate the dimensions, in ft, of a cylindrical drum that can hold 15 gal of oil with a minimum surface area.
    1 answer · Mathematics · 10 months ago
  • Need help with math?

    Can anyone tell me how to find maximum volume when given the surface area? for example I have this question: A rectangular transport box has a surface area of 625 ft2 it is designed to contain a maximum volume. What are the dimensions so that its volume is maximized?
    Can anyone tell me how to find maximum volume when given the surface area? for example I have this question: A rectangular transport box has a surface area of 625 ft2 it is designed to contain a maximum volume. What are the dimensions so that its volume is maximized?
    2 answers · Mathematics · 10 months ago
  • Math help?

    How do I solve these: 4^(3x-2)=1 And 10^(-3x) x 10^x= 1/10
    How do I solve these: 4^(3x-2)=1 And 10^(-3x) x 10^x= 1/10
    4 answers · Mathematics · 12 months ago
  • How do I solve this math problem?

    16^(x+1)=8^(3x-2)
    16^(x+1)=8^(3x-2)
    5 answers · Mathematics · 12 months ago
  • Exponential Equations?

    How would you solve the equation: 5(10)^x+3=5000
    How would you solve the equation: 5(10)^x+3=5000
    3 answers · Mathematics · 12 months ago
  • Math help please?

    Playing darts the probability that sally will hit the bullseye is 0.80 and the probability that james will hit it is 0.75. Find each of the following: a)the probability that sally hits the bullseye and james doesn't b)the probability neither hits the bullseye
    Playing darts the probability that sally will hit the bullseye is 0.80 and the probability that james will hit it is 0.75. Find each of the following: a)the probability that sally hits the bullseye and james doesn't b)the probability neither hits the bullseye
    3 answers · Mathematics · 1 year ago
  • Math problem! please help?

    A yoga group consists of 4 males and 8 females. In how many ways can a committee of 5 people be formed from this group if: a)At least one person must be female b) there must be more males than females
    A yoga group consists of 4 males and 8 females. In how many ways can a committee of 5 people be formed from this group if: a)At least one person must be female b) there must be more males than females
    1 answer · Mathematics · 1 year ago
  • Math question?

    How can a committee of 4 people be formed from a group of 6 men and 4 women if: a)at least one of whom must be a woman b)exactly two are female?
    How can a committee of 4 people be formed from a group of 6 men and 4 women if: a)at least one of whom must be a woman b)exactly two are female?
    2 answers · Mathematics · 1 year ago
  • Math problem?

    a)How many committees are possible from a group of 6 men and 4 women if there are to be four people on the committee? b)at least one of whom must be a woman c)exactly two are female?
    a)How many committees are possible from a group of 6 men and 4 women if there are to be four people on the committee? b)at least one of whom must be a woman c)exactly two are female?
    1 answer · Mathematics · 1 year ago
  • Math help?

    A bag contains 6 red, 3 black, and 5 green marbles. Four marbles are selected at random, without replacement. Calculate the probability A) that all 4 are red B) exactly two are green C) exactly two are red and none are black D) the expected number of black
    A bag contains 6 red, 3 black, and 5 green marbles. Four marbles are selected at random, without replacement. Calculate the probability A) that all 4 are red B) exactly two are green C) exactly two are red and none are black D) the expected number of black
    1 answer · Mathematics · 1 year ago
  • Math question?

    Earlier this year, 450 ducks were caught and tagged. On a recent survey, 45 out of 150 ducks had been tagged. Estimate the size of the duck population.
    Earlier this year, 450 ducks were caught and tagged. On a recent survey, 45 out of 150 ducks had been tagged. Estimate the size of the duck population.
    2 answers · Polls & Surveys · 1 year ago
  • Hypergeometric math problem?

    A bag contains 6 red, 3 black, and 5 green marbles. Four marbles are selected at random, without replacement. Calculate the probability A) that all 4 are red B) exactly two are green C) exactly two are red and none are black D) the expected number of black
    A bag contains 6 red, 3 black, and 5 green marbles. Four marbles are selected at random, without replacement. Calculate the probability A) that all 4 are red B) exactly two are green C) exactly two are red and none are black D) the expected number of black
    1 answer · Mathematics · 1 year ago