Madelina has a bag of colored cubes. She has 16 red cubes, 4 blue cubes, 8 green cubes, and 20 yellow cubes. She adds 4 red cubes to the bag. How many of each of the other colors would she need to add to keep the probability of randomly selecting 1 cube of each color the same as it was before she added the cubes? Justify your response.

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What is the factor form of x^2-9x+14

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

The graph is supposed to show f(x) = 3 sin (x/4+1) - 1/2. which of the following are correctly represented in the graph? select two of the following that apply.