03/06/15

Given a Random Variable X that has a binomial distribution with n = 60 and p = 0.5 find...
Find P(X  60)  =      Find E(X)  or the mean of X  Find Var(X) 
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03/06/15

y=(x-2)(x-3)(x+5)
y=(x-2)(x-3)(x+5)   1- Determine the end behavior of the function.                                                                       2- Find all... more
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03/06/15

You have a total of 65 coins, all nickels and dimes which have a total value of $5.50, how many of each coin do you have?
My issue is mainly Im having trouble sorting which variables and numbers fit into which part of the two equations. As well as not sure  weather to use a substitution or elimination operation. Help... more
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03/06/15

ok so Over the course of a year, a company goes from 115 employees to 124 employees. how do i build an equation
the company goes from 115 employees to 124 i need this in the form of an equation using the *100 at the end how do i do this??  
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03/06/15

how many people wanted there benefits?
A business did a survey of all its employees, 3 of 16 people wanted their benefits. 5 of 8 people wanted to change the benefits. Overall 150 didn't decide on the benefits.
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03/06/15

Statistics problem about large samples and normal distribution
A researcher has collected a large sample of IQ scores from his friends and relatives. He claims that because his sample is large and the distribution of his sample scores is very close to the bell... more
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03/06/15

if x cos A + y sin A = m and x sin A - y cos A = n, then peove that : x2 + y2 = m2 + n2
This is a trigonometrical ratios question and am finding it really difficult to solve this. ...I have my exams going on so it will be helpful for me if I get the solution to this
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03/05/15

Streaks and the Gamblers Fallacy
You play softball and have a batting average of .333, meaning that you average about one hit in every three times at bat. During your 25-game season, you have one game in which you get a hit each... more
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03/05/15

A group excursion is offered at a price of $600 per person. This price will be honored if 200 tickets are sold.
A group excursion is offered at a price of $600 per person. This price will be honored if 200 tickets are sold. For each additional person, the price will decrease by $2. What number of passengers,... more
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03/05/15

What is the explicit formula for the sequence -1, -2/3, -3/7, -4/15
What is the explicit formula for the sequence -1, -2/3, -3/7, -4/15
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03/05/15

Please please help me with math!!!
You invest a total of $10,400 in two investments earning 5.5% and 10.5% simple intrest. (There is more risk in the 10.5% fund) Your goal is to have a total annual intrest income of $672. Where x... more
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03/05/15

roll a pair of dice about 200 times
You are playing a board game where you roll a pair of dice about 200 times. During the course of the game you roll doubles two times in a row.    What is the probability of rolling doubles two... more
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03/05/15

One taco and one carton of milk costs $2.10. Two tacos and three carton of milk cost $5.15. How much is the taco and how much is one carton of milk?
Can i see this in an addition method?
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03/05/15

38+11\7+3*4
I needed help with this cause I couldn't understand it    
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03/05/15

A 20 ounce box is filled with cans. Each can weighs 16 ounces. The total weight of the box with cans is 212 ounces. What would be the equation
I would like to know what kind of equation I would have to use to solve this problem.
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03/05/15

What is the probability they sum to 9, 3, or 6?
involving the sum of two die rolls.(1) What is the probability they sum to 9, 3, or 6? (2) What is the probability they sum to at least 7?
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03/05/15

Simplify and write the answer using only positive exponents. Assume that all variables represent nonzero numbers
(a3)-2(z2)4   a0(z-3)-2 there is a line in between the two problems top and bottom
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03/05/15

from a club of 25 people, in how many ways can a group of four members be selected to attend a conference
from a club of 25 people, in how many ways can a group of four members be selected to attend a conference?   how many different ways can the group of 4 members be selected?
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03/05/15

how long will it take a rocket to reach its maximum height
during an independance day fireworks show, the height h in meters of a specific rocket after t seconds can be modeled by h=-4.9(t-4)squared +80
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03/05/15

add a polynomials
add the polynomial (x^2+3x-9)+(-4x^2+2x-3) I did the problem and came up with the answer -3x^2+5x-12.I need to know if this is write.If its not please solve it correctly.Thanx
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03/05/15

he ny dimes as nickels.There are also twice as many quarters as dimes. How many dimes are in the cash register?
The coins in the store's cash register total $12.50. The cash register contains only nickels,dimes,and quarters. There are twice as many dimes as nickels.There are also twice as many quarters as... more
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03/04/15

solve and check v6a+3-5=4
The root line goes all the way from 6a to 3.. 
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03/04/15

One-fifth equals the quotient of a number and 25. Find the number.
i don't have any additional information for my question.
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03/04/15

help algebra 2
A rocket generates a net force (F) of 2,050,000 newtons, and the rocket’s mass (m) is 40,000 kilograms. Use the formula F = ma to find the acceleration (a) achieved.   a.) 51.25... more
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03/04/15

A 12 decease is 20% of the base value of
A 12 decease is 20% of the base value of
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