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a charity sells tickets for a fundraising dinner. each adults ticket cost 10 dollars and each childs ticket cost 5 dollars. a total of $1050 was raised by selling 130 tickets. how many adults and child tickets were sold?
Important information about Counting and probability, Find the number of possible combinations of picking 2 items out of 6.
Important information about Probability : Sampling without Replacement A bag cotains 10 nickels, 5 dimes, and 3 quarters. If you draw 3 coins at random from the bag, without replacement
money is deposited into the account at a continuous rate of $2000 p.a at a continuous rate of 8% p.a compounded quarterly. Express the amount as an exponential function of time hence find the amount in the account after 5 years.
Calculate the ninety-nine percent confidence interval find the gasoline mileage of an individual, randomly selected 2006 car with 180 horsepower.
Solve the following problem by simplex method
Find the volume of a triangle with sides y = 2, y = x+1, y = 11-x. The vertices are (5, 6), (1, 2) and (9, 2). Find the volume by rotating about y-axis:
Please explain how to create a function whose graph has the indicated characteristics for each of a and b
Find the sample size: We desire to be within plus or minus 4 units. We will have a 95% confidence interval and the population standard deviation is 15. What is the estimated sample size?
A power Station and a factory are on opposite sides of a river 60m wide. A cable must be run from the power station to the factory. it costs $25 per meter to run a cable in the river and $20 per meter on land.
The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard deviation of 10 inches. What is the probability that the mean annual precipitation during 25 randomly picked years will..
Highway engineers design a parabolic curve for an entrance ramp from a straight street to an interstate highway . The vertex of the curve passes through (0, 0) and the parabola passes through (1000, + 800). Find an equation for the parabola.
The logistic growth function f(t)=400/1+9.0e^-0.22t describes the population of a species of butterflies t months after they are introduced to a non-threatening habitat. How many butterflies are expected in the habitat after 12 months?
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