01/26/17

12/20/16

#### let d=(a,b) then a|bc if and only if a/d is a divisor of c

prove it if it is correct or give counterexample if it is falselet d=(a,b) then a|bc if and only if a/d is a divisor of c

09/05/16

#### If f(x) = 2x5 + 3 and g(x) = x2 – 1, what is the degree of [f o g](x)?

i need help cause im stuck

03/24/16

#### What is the maximum value of the objective function under the given constraints?

{x>=1{y>=2                 objective function C=x+5y {2x+2y<=10 11 13 21 29   The vertic of a fesabile region are (4,2)(10,2)and (10,14) The objective function is P=4x+y What is... more

03/12/16

#### Binomial Theorem

Use the Binomial Theorem to expand the following: (a+b)^6 (x+1)^7

01/27/16

#### how many gallons of a 24%-alcohol solution must be mixed with a 52%-alcohol solution to obtain 40 gallons of a 36.25 alcohol solution?

how many gallons of a 24%-alcohol solution must be mixed with a 52%-alcohol solution to obtain 40 gallons of a 36.25 alcohol solution?

12/06/15

#### relationship between number of objects in a given area and how often those objects intersect another object in that area

I am trying to calculate the number of asteroids in our solar system based on how often they hit the earth. I feel like there must be a mathematical relationship between how many objects there are... more

07/29/15

#### Hyperbolic line, solving for a,b

h(t,x) is an isometry of the hyperbolic line t^2-x^2=1 , t > 0 , of the form h(t,x)= a*t+b*x, -a*x-b*t for some constants a > 0 , b such that a^2-b^2=1 . Find a,b so that h(1.221, -0.7) =... more

04/28/15

#### Which of the 10 digits does A Represent

in the following problem? (A, S, M, and N are all different)   AS * A = MAN

04/28/15

#### Fifty percent more than what number is 25 percent less than 60 percent more than 10?

Advanced Math Math Algebra 2 Algebra

04/28/15

#### For how many integers x is

(15+2x)(17-3x)(2-5x)(31-3x) positive?

08/07/14

#### Can you help me?

For a science project, Sammy observed a chipmunk and a squirrel stashing acorns in holes. The chipmunk hid 3 acorns in each of the holes it dug. The squirrel hid 7 acorns in each of the holes it... more

07/31/14

#### What is the probability of rolling a 1 exactly 3 times?

You roll a number cube 4 times. What is the probability of rolling a 1 exactly 3 times?

07/31/14

#### what is the mean of this binomial probability distribution?

You are playing a card game in which you have a 0.25 probability of winning each hand. If you play 15 hands,what is the mean of this binomial probability distribution?

07/31/14

#### What is the mean of the number of the friends who could graduate?

The probability that a college freshman will graduate college is 0.5. Six friends enter college at the same time.

07/31/14

#### Which of the following values is unusual?

The mean of a distribution is 100 and the standard deviation is 10.   130 80 120 90

07/31/14

#### Which of the following values is unusual?

The mean of a distribution is 10 and the standard deviation is 3.   6 3 10 16

07/30/14

#### how many would be expected not to fail when 1,500 TV's go to market?

If the failure rate of TVs is 13.3%,how many would be expected not to fail when 1,500 TV's go to market?

07/30/14

#### How many mice are within one standard deviation of the mean?

The standard deviation of the mass of 50 mice in a normal population is 5 g.

07/30/14

#### what percentage of the distribution lies within 100 and 200?

The average value of a distribution is 150. The standard deviation is 25

07/30/14

#### how much does the standard deviation change if the outlier 9 is removed from the data?

Values are 1.2, 3, 4, 1.2, 3.2, 4.1, 1.2, 9, 6, 1.2, and 4.5

07/28/14

#### What is the effect on the median when the outlier is removed from the following set of data?

23, 76, 79, 76, 77, 74, 75

07/28/14

#### What is the effect on the median when the outlier is removed from these ages?

The people attending a movie showing on Saturday had the ages: 43, 46, 49, 50, 52, 54, 78, 47.

07/28/14

#### what is the change in the average of the mass of the mice?

A group of laboratory mice were massed and the results are as follows: 504 g, 340 g, 450 g, 499 g, 201 g, 550 g, 525 g and 505 g. Remove the 550 g mouse from the study

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