11/05/17

given that P(A)=0.57 and P(B|A)=0.09 P(B)=0.34 What is the P(A or B)?
please help me understand this question and how to get the answer
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10/30/17

2. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
Please answer the question
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10/26/17

five fish can be traded for two loaves of bread and a loaf of bread can be traded for six bags of rice. How many bags of rice is one fish worth?
this problem is apart of my study guide for a very important test.
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10/24/17

What is the Vertical asymptote and horizontal asymptote of x/4x^2-49
 Please help me find the vertical and the horizontal asymptote of this equation a(x)= x/4x^2-49   Thank You!
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10/23/17

True or False: if f(x) = 3^x, then f^-1(x) = ln(x)/ln(3) for all x >0
Please Justify why or why not 
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10/23/17

Five years ago, Jacob was one sixth of the age of his brother. In three years' time his age doubled will match his brother's age. How old is Jacob now?
impossible
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10/18/17

determine g(x+a)-g(x) for the function g(x)=-4x^(2)-5x-5
determine g(x+a)-g(x) for the function g(x)=-4x^(2)-5x-5
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10/18/17

What are the dimensions of the rectangle?
The length of a rectangle measures 2 cm more than its width. The perimeter of the rectangle is 68. Find the dimensions of the rectangle.
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10/18/17

What are the three numbers?
The sum of three consecutive numbers is 519. What are the three numbers?
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10/16/17

Word problem
A bleach is 6.75% sodium and a swimming pool shock treatment is 9.5% sodium. How much of each item must be mixed to get 8 cups of a mixture that is 8.4% sodium?
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10/06/17

prove triangle MRO is congruent to triangle PRO
Given: RO is perpendicular to MP Given: MO is congruent to OP Prove: Triangle MRO is congruent to triangle PRO
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10/06/17

standard deviation
country a annual exports to country b are $3.2bilion on average with standard deviation of 0.28 billion. country a annual imports to country b are $3.5 bilion on average with standard deviation of... more
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10/05/17

4th Grade math problem
Suzanne bought 50 apples at the apple orchard. She bought 4 times as many red apples as green apples. How many more red apples than green apples did Suzanne buy?
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10/05/17

There are two numbers with a difference of 18. One number is 8 more than half of the other. What are the two numbers
 My question is a 7th grade houses question   
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10/05/17

Expected value and variance
Let Y be a random variable with p(y) given in the accompanying table. Find E[Y ],E[1/Y ], E(Y2 -1), V(Y) y 1 2 3 4p(y) 0.4 0.3 0.2 0.1   I know that V(Y) means the variance but what does E(1/Y)... more
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10/02/17

how long to paint a room
together, kris and her daughter kathy require 6 hr 24 min to paint a room. alone, kathy would require 24 hr more than kris. how long would it take kris to do the job alone? (convert minutes to hours)
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09/15/17

probability
The data Baseball contains information about a team which is using an automatic pitching machine.If the machine is correctly setup and properly adjusted, it will strike 85 percent of the time. If... more
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09/11/17

seven is at most the quotient of number d and -5
write the inequality for the problem
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07/19/17

find the surface area of a rectangular prism
3cm 3cm 7cm please give me the correct answer 
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07/19/17

name the population 45% of chicago residents surveyed, own their own vehicle
Name the population 45% of chicago residents surveyed, own their own vehicle
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07/18/17

statistic estimators
i need help on this exercise, i can't seem to understand the basis of this problem, what are estimators? and what are the steps you need to do in order to evaluate them? exercise: Consider the... more
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06/26/17

: a​ $1, a​ $5, a​ $10, and a​ $20 bill. Two bills are to be selected at random with replacement.
The probability that both bills are $5 if the second the second selected is a $55 bill is
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06/26/17

Queueing question
A local country garage has one petrol pump. On average, customers are served at a rate of 6 per minute. On normal days, customers arrive at the rate of 30 every 10 minutes. Arrivals follow a... more
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01/03/13

How do I create a probability model?
You draw a card from a deck If you get a red card ou win nothing. If you get a spade you win $5. If you draw a club you win $10 plus an extra $20 for the ace of clubs. Create a probablity model for... more
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