02/10/20

Probability Distributions

In a box of smarties there are eight different colours which normally occur in equal proportions. Rachael is given 24 smarties, and orange ones are her favourite. Assume they come from a very large... more
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01/08/20

probability distribution

The probability distribution for a random variable x is given in the table.X: -10,-5,0,5,10,15,20Probability: .20, .15, .05, .1, .25, .1, .15find the probability that x≥5
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08/23/19

Write and solve an equation to find the number n. The sum of twice a number and half the number is 10.
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08/07/19

Need help with a word problem

James earns $150 per week plus $15 for each sale he makes. Last week, James earned $240. How many sales did James make?
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06/22/19

Stats Problem Please Help
A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral... more
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06/14/19

Annuities and Loans
Hello! I have been stuck on this math problem all day! I hope someone can help me.you want to be able to withdraw 30,000 each year for 20 years. Your account earns 7% interest. How much do you need... more
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05/16/19

Jamie earns $28,000 in her first year and then earns a 4% raise each year. Write the recursive and explicit model for Jamie’s pay over t years.
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04/18/19

y=2x^2+8-4x+x^3 in standard form
Eexplanation
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02/03/15

How much of an alloy that is 40% copper should be mixed with 300 ounces of an alloy that is 90% copper in order to get an alloy that is 70% copper?
How much of an alloy that is 40% copper should be mixed with 300 ounces of an alloy that is 90% copper in order to get an alloy that is 70% copper?
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01/24/15

How do I set this up as an inequality?
Amy's final exam has true/false questions, worth 3 points each, and multiple choice questions, worth 4 points each. Let x be the number of true/false questions she gets correct, and let y be the... more
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01/16/15

Find the number of cans of popcorn and the number of mixed nuts sold.
Suppose the band sells cans of popcorn for $5 per can and can of mixed nuts for $8 per can.  The band sells 240 cans and receives a total of $1614.
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12/20/14

I need some one to check my work please
In exercise 51-60, write the statements in symbolic form.p: The temperature is 90º.q: The air conditioner is working.r: The apartment is hot.56. The temperature is not 90° if and only if the air... more
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11/21/14

Math help, and word problem with proabilities
A prisoner is given 10 white balls, and 10 black balls, and 2 boxes. If it is white, the prisoner will go free, if it is black, he will remain in prison.Each box has an equally likely chance of... more
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10/31/14

how to solve a forth degree equation it's like this x^4+3x^2-3x-9=0 on ]-infinity.-2}
please help find the roots of this i need it tomorrow really!!
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09/26/14

Write the point slope form of the equation of the line described
Write the point slope form of the equation of. through:(-4,0), parallel to y=3/4x-2.    The second one is same thing through: (-1,4), parallel to y=-5x+2
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09/20/14

how do i solve this word problem?
A softball player had 13 hits in 25 times at bat.What percent of her times at bat resulted in hits?
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09/20/14

The sum of two positive integers is 29. If the second integer is one less than four times the first integer. Find the integers
The sum of two positive integers is 29. If the second integer is one less than four times the first integer. Find the integers
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09/03/14

Jesse saved one half of what he made last week. Zoie made $60 and saved an equivalent ratio to what Jesse saved. How much did Zoie save?
Jesse saved one half of what he made last week. Zoie made $60 and saved an equivalent ratio to what Jesse saved. How much did Zoie save?
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07/05/14

Statistics show that the sales force of a certain company successfully closed 156 sales out of 300 sales calls. What was their percent success rated
I need help with some question in Math I need the answers
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06/25/14

6/(n raise to 3 - n)
6/(n3-n)∀nä∈Ζ
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06/11/14

A construction company needs to remove tons of dirt from a construction site. They can remove tons of dirt each hour. How long will take to remove the dirt?
A construction company needs to remove tons of dirt from a construction site. They can remove tons of dirt each hour. How long will take to remove the dirt?
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06/08/14

Financing Word Problem - HELP!
How much should Jethro invest now to have $10 000 in 3 years time? The money will be invested at 5%/ a compounded monthly.
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05/29/14

Rotating a segment 30 degrees around the origin
I got this question wrong on a test, and I would like to know how to solve it!: Segment MN with endpoints M(6,-10) and N(1,0) is rotated 30 degrees about the origin. What are the coordinates of... more
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05/27/14

Word problem for algebra 2
a normally distributed set of 862 values has a mean of 132 and a standard deviation of 9. what is closest to the number of values expected to be above 145
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05/12/14

84x^5/-7x^5
 How do I fully simplify this step by step 84x^5/-7x^5
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