10/01/15

a square and a rectangle have the same perimeteruare
a square and a rectangle have the same perimeter. the length of the rectangle is 4cm less than twice the side of the square, and the width of the rectangle is 6cm less than the side of the square.... more
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10/01/15

spectrophotometer pre-lab homewrok
it is in chemistry.  What is a spectrophotometer? How does it relate to Beer’s Law? How does it work? If you feel a diagram is necessary to help explain this, be sure to include one. (2 point)
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10/01/15

Statistics question
A geologist collects hand specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of... more
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09/30/15

differentiate f(x)=e^x cosx
Please help me 
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09/30/15

differentiate y=sec(0) tan(0)
Please help me 
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09/30/15

find an equation of the tangent line to the curve at the given point y=x+tanx (pi)(2pi)
Please help me 
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09/30/15

find the derivative of the function f(t)= e^at sin bt
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09/30/15

Find f'(x) and f"(x): f(x)=x/x^2-1
Please help
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09/30/15

Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 10, p = 0.6, P(0)
Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 10, p = 0.6, P(0)
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09/30/15

Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 11, p = 0.5, P(9 or mor
Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 11, p = 0.5, P(9 or more)
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09/30/15

One number is 9 times a first number. A third number is 100 more than the first number. If the sum of three numbers is 980, find the numbers
I don't know the answer 
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Q

09/30/15

Glenda had 2/7 of her money and 4/9 of the remaining money to her brother. she had 1/3 of her original amount of money left. how much she have at first ?
Glenda had sum of money. she gave 2/7 of her money and another $ 105 to her parents. then she gave 4/9 of the remaining money to her brother. she had 1/3 of her original amount of money left. how... more
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09/30/15

During an election campaign, a candidate gave away 5000 little advertisements.
During an election campaign, a candidate gave away 5000 little advertisements. The pens he gave away cost $0.23 each and the bumper stickers cost $0.14 each. He spent a total of $970.00 for the... more
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09/30/15

Happy Planet drinks price change as the quantity sold changes. In particular p=19-0.005x. The total cost to produce the drinks are $5 per drink. Their productio
Happy Planet drinks price change as the quantity sold changes. In particular p=19-0.005x. The total cost to produce the drinks are $5 per drink. Their production factory costs $1903 per month. What... more
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09/29/15

find the derivative of the function g(x)=4^c/x
Please help me 
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09/29/15

Differentiate y=(t^3 + 3t)/ (t^2-4t+3)
Please help me 
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09/28/15

This question is about functions, domains, and ranges. Please solve this word problem
federal express charges lucy $18 for pick up and then asses a fee of $1.45 per lb to ship a package. Write an equation that shows the relationship between the total shipping charge (c) and the... more
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09/28/15

How many ways can a delegation of 4 Republicans, 3 Democrats, and 2 Independents be selected from a group of 5 Republicans, 9 Democrats, and 5 Independents
probability stats questions
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09/28/15

Word Problems
How many milliliters of a 70% acid solution should be added to 12 milliliters of a 15% acid solution to obtain a solution that is 60% acid?     
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09/28/15

Math Word Problems
Mario and Luigi leave to small towns that are 230 miles apart at the same time, traveling directly toward one another. Mario is traveling at a rate that is 15mph slower than luigi. They pass each... more
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09/28/15

DON'T KNOW HOW TO DO THIS!!!!
A candy company claims that 16% of its plain candies are orange, and a sample of 200 such candies is randomly selected.a. Find the mean and standard deviation for the number of orange candies in... more
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09/28/15

Could I get some help with this
Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of girls Ted approaches before... more
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09/28/15

Need help please
Heights of women have a bell-shaped distribution with a mean of 164 cm and a standard deviation of 6 cm. Using Chebyshev's theorem, what do we know about the percentage of women with heights that... more
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09/28/15

How many gallons of each kind of syrup are needed to make 50 gallons of the mixture?
Maple syrup worth $6.00 a gallon and corn syrup worth .80 a gallon are used to make a mixture worth $2.36 a gallon. How many gallons of each kind of syrup are needed to make 50 gallons of the mixture? more
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09/28/15

LOST IN TRANSLATION
Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 193 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed... more
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