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Assume that advanced students would average 93% on an achievement test and that regular students would average 75% on it.
a. If 100 advanced students and 300 regular students took the test, what would you expect the average to be?
b.How many of each kind of student would be needed to get a group of 90 students who would average 87% on the test?"
Explain why you would use grouping when factoring 6x4 - 9x3 + 2xy - 3y and describe the steps in the process.
Trace the algorithm below and track the number of times that the addition operation (+) is executed over the course of the program's run time. Answer the question by giving a formula in terms of n:
A market research organization has found that 40 percent of all supermarket shoppers refuse to cooperate when questioned by its pollsters. If 1,000 shoppers are approached, Find the probability that fewer than 500 will refuse to cooperate?
Find the validity of following argument form.
A fabric wall hanging is to fill a space that measures 12 ft by 10 ft. Allowing for 3 in. of the fabric to be folded back along each edge, how much fabric must be purchased for the wall hanging? Round to the nearest whole number.
Probability question. A doctor's office has 4 examination rooms. At any given time, each room can either be occupied or empty. How many configurations of occupied and empty examination rooms are possible?
How much money can a person afford to borrow at 8% interest compounded semiannually if the loan is to be repaid at half-year intervals for 10 years with $1000 payments per half-year?
A farmer Wants to fence a rectangular yard using 260 ft of fencing. What dimensions should he use for the greatest area?
Which of the following is NOT a potential source of survey error?
(b) What should be the level of sales be in order for the division to realize a 13% profit over the cost of making the diaries? (Round your answer to the nearest whole number.)
Carl wants to construct three rectangular dog-trainig arenas side-by-side, as shown, using a total of 340 feet of fencing. What should the overall length and width be in order to maximize the area of the three combined arenas?
find the distance from the point y=(9,9,0,0) to the subspace V
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