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A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 4 answer choices - a, b, c, d- and only one correct answer. What is the probability that she answered both of the problems correctly? Write your answer as a fraction insimplest form.
find the constant of variation and write an equation of direct variation.for the given values of x andnbspy ynbspvaries
U.C.L.A. states that at least 40% of the students live on campus. From a sample of 250 students, 90 live on campus. Does this sample provide evidence that fewer than 40% live on campus? Conduct the test with a=0.01.
What year is it in Japan right now. This is a Math question and I believe it has something to do with with change in Calendar systems and the fact Japan drops a month.
If a 2 lb weight stretches a spring 15 inches and a 12 lb weight stretches the same spring 20 inches, what is the length of the spring with no weight attached.
The mean weight of loads of rock is 43.0 tons with a standard deviation of 12.0 tons. If 9 loads are chosen at random for a weight check, find the probability that the mean weight of those loads is less than 38.60 tons. Assume that the variable is ..
a step1 in this case julia has three decisions variable x1 numbers of pizza slices x2 numbers of hot dogs and x2
Construct an equilateral triangle. Then construct one of its altitudes. If the sides each have length 1, how long is the altitude
A machine produces widgets at a defective rate of 10%. A sample of 5 widgets is taken, What is the probability that less than 2 of them are defective?
write the expression in terms of a single trigonometric functioncos 3x4 cos x4 sin3x4
Find a vector parametric equation for Π in the form r = p + sv + tw.
The magnitude and direction of vectors u and v are given. Find vector w's polar coordinates.
write and solve an equation to determine the selling price of the house. jamie sold her house for x dollars. the real
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