Find a sinusoidal function for the outside temperature over a day given it is 80 degrees at midnight, with a high of 92 and low of 68 degrees. Let t be hours since midnight, find D(t).
Emily conducted an experiment to test if touch therapists could sense her energy field. In 321 trials, therapists were correct 147 times. Find the expected proportion of correct responses if therapists made random guesses. 21
Create a tile pattern that grows by 5 tiles per figure, starting with 4 tiles. Draw figures 1, 2, and 3. Make an x→y table and write an equation for the pattern.
Найдите уравнение прямой q, которая вместе с прямой n образует систему с единственным решением при x=23 и y=0.
Варианты:
a) y=23x
b) y=34x−2
c) y=−25x+1
d) y=−32x+23
Determine if the mean FICO credit score is greater than 720 using a sample of 50 people with mean 765 and standard deviation 98. Use α=0.01 level of significance and the P-value method. H0:μ≤720H1:μ>720 This hypothesis test is a right-tailed test.