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With what inclination must a body be thrown so that its horizontal range is equal to four times its maximum height?
General
2 months ago
A question paper consists of two sections I and II), each containing five multiple choice questions. Each question in Section I has two choices True or False) and each question in section II has three choices( A, B or C). What is the probability that a learner never answers 'C' in Section II?
General
2 months ago
Find the logarithm. log4 (4 1/6)=
General
2 months ago
5) Given the following propositions: p = ́ ́105 is a multiple of 3 ́ ́ q = ́ ́69 is a prime number ́ ́ r = ́ ́-1 is a number less than -2 ́ ́ Write in symbolic form respecting, brackets and keys: ́ ́102 is not a multiple of 3 if and only if -1 is not a number less than -2 and 69 is a prime number ́ ́ 6) Taking into account the propositions p, q and r from the previous exercise, find the truth value of the following compound proposition: [(q↔ r) ˄ ((-q) →p)] Justify the answer of the intervening propositions
General
2 months ago
suppose a deck contains no red-face cards. the is the probability of drawing a face card from the deck, given the card is red.
General
2 months ago
The diagonal of a right triangle is 10 cm and one side is 8 cm. What is the perimeter of this rectangle
General
2 months ago
difference between regression and correlation with examples
General
2 months ago
If there is three people picked at random from a sample group of 285, 90 of which did not respond, what is the probability that at least one did not respond to this question?
General
2 months ago
A body is thrown vertically upward with a velocity of 300 m/s. a) What is its velocity after 10 s? b) How high will it be after 10 seconds?
General
2 months ago
Deposits of $ 90are made at the of every for 4.5years. What will the deposits amount to if interest is 6% compounded
General
2 months ago
If it is a one-tailed test, and the z-value of the test is 2.0, the P-value is:
General
2 months ago
The ratio between the goals against and the goals for Argentina in the Qatar 22 World Cup is 8/15. If the goals for are 1 less than twice the goals against, find how many goals for and against we had.
General
2 months ago
In a training course offered by a company to a group of workers, one theoretical and the other practical, a rating was given on a scale of 0 to 10. One of the workers received scores of 8.2 and 6.8 in the respective courses. The worker was able to determine the averages and the spread of the grades obtained in each course, with the following result: Theoretical course mean = 8.7 and standard deviation = 0.8 Practical course mean = 5.8 and variance = 1.21. According to the data in the table, in which of the courses did this worker achieve a better relative position?
General
2 months ago
The attached table shows the mean and standard deviation of the ungrouped scores corresponding to an exam that has been taken by students from three different groups A, B, and C, with 20 students in each group. The minimum score established in the exam is 0, and the maximum is 10. Mean for group A = 4.35, B = 6.28, and C = 5.33 Standard deviation for group A = 2.37, B = 2.20, and C = 2.68 According to the provided information, the group with the most homogeneous grades is:
General
2 months ago
Work out the division of 10 into 100
General
2 months ago
The restaurateur buys 14.2 kg of meat, the trimmings amount to 21% and the loss to 32%.
General
2 months ago
The continuous random variables (X, Y ) have joint density function fXY (x,y) = xe−xy, x ∈ (0,1), y > 0. a) Derive the marginal density of X and recognise its distribution.
General
2 months ago
Adam rode 1/6 of distance to school in 4.5 minutes. If he continued at the same speed how long will it take to get to school
General
2 months ago
Solve the math problem James drove 2/6th of the way to work in 8 minutes. How much longer will it take to get to work
General
2 months ago
(-2x5 - 4x3 - x2 -80) % (x-2)
General
2 months ago
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