• x(3 − 4x) ≤ 0

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  11 months ago

• 41.17 as a fraction

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  11 months ago

• 32423+9

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  11 months ago

• 435+5

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  11 months ago

• Solve the inequality involving absolute value. |x−2|+4≥10 Enter the exact answer in interval notation. To enter ∞ , type infinity. To enter ∪ , type U. Preview Show your work and explain, in your own words, how you arrived at your answers

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  11 months ago

• sin 30

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  11 months ago

• tg 45

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  11 months ago

• A bakery sells muffins and cookies. The total number of muffins and cookies sold is 78. The number of muffins sold is 15 more than twice the number of cookies sold. Let's use variables to represent the number of muffins and cookies sold. 

 Let:
 M represent the number of muffins sold.
 Let C represent the number of cookies sold.

 From the information given, we can create two equations :

1. The total number of muffins and cookies sold is 78, so we have:
M + C = 78

 :2. The number of muffins sold is 15 more than twice the number of cookies sold, which can be represented as:
M = 2C + 15

So, the equations representing the situation are:
 M + C = 78 (Total number of items sold) 
M = 2C + 15 (Number of muffins in terms of cookies). How would be the best way to find out the exact number of muffins sold and the exact number of cookies sold which equal to 78

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  11 months ago

• What is ΣX for the following scores: 1, 3, 5

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  11 months ago

• What is (ΣX)2 for the following scores: 1, 3, 5

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  11 months ago

• (-2x5 - 4x3 - x2 -80) % (x-2)

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  11 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

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  11 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

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  11 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.

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  11 months ago

• The restaurateur buys 14.2 kg of meat, the trimmings amount to 21% and the loss to 32%.

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  11 months ago

• Work out the division of 10 into 100

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  11 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:

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  11 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?

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  11 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.

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  11 months ago

• If it is a one-tailed test, and the z-value of the test is 2.0, the P-value is:

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  11 months ago