Q and A for the topic: General

One-sixth of the male freshmen entering a large state school come from out of state. If students are randomly assigned to dormitories, 180 in a building, what is the probability that in a given dormitory at least one-fifth of the students are from out of state?

Statistics published by the National Highway Traffic Safety Administration and the National Safety Council show that on an average weekend night, 1 in 10 drivers is drunk. If 400 drivers are randomly checked the following Saturday night, what is the probability that the number of drunk drivers will be 400? a) less than 32? b) greater than 49? e) at least 35 but less than 47?

domain of 10/ 2x-4 ≤ 0

what do the the vector function x = 2, y = 3 cos t, z = 3 sin t for 0 ≤ t ≤ 2π describe

Find the highest common factor of 405 , 783, 513

Find the H.C.F 632,790,869

Determine the parameter K so that it is a real number and the following equation is maintained: Z= (1-2Ki)/(Ki). And the value of K so that it is a pure imaginary number.

As a result of a decreased number of service lines at a grocery store, the average amount of time a customer waits in line has decreased from 4.4 min to 2.5 min. find the perfect decrease. Round to the nearest tenth of a percent .

What is the molarity of a solution prepared by diluting 20.0mL of 25.0 M HCI solution with 10.0 mL of water

A ball is dropped from a bridge 20 m tall. Calculate the time it will take the ball to reach the ground (free fall time)

The average for the math test is 9.8. If we do not count the lowest grade of 5, on this test, the average will be 10. what is the number of students in the class

If eight more than two times a number is one less than five times the same number what is the number?

The second angle of a triangle is two times the first angle the third angle of the triangle is 92° more than the first angle find each angle of the triangle

5-11x=7(5-2x)

Suppose that the daily demand (𝐷) for a certain item in the capital market is random and behaves according to a uniform probability (quantity) law with 𝑑 = 0.1, … ,19. Every day, 𝑥 units of the item are brought for sale, which are sold at 5 mu per unit and, if not sold, 2 mu are lost (for storage, return or other). Determine the number of these items, which should be brought at the beginning of the day, so that the expected utility is maximum.

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If the line D: x = 1 is the directrix of the parabola p: y raised to the power of 2 - kx + 8 = 0, then one of the values of k can be:

If the line 2x - 3y + 17 = 0 is perpendicular to the line L that passes through the points P = (7, 17) and Q = (15, m) then the equation of the line L is:

the equation of the line that passes through point A (4, -6) and forms an angle of 45º with the positive x axis is:

Find the equation of the line that passes through the centers of the circle C1: x raised 2 + y raised 2 = 4 and C2: x raised 2 + y raised 2 + 6x -2y = 0