9y = 13y2 - 4
The discriminant of the quadratic is ?...
Answers: 2
Mathematics, 22.06.2019 04:30, RichardKing2376
Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t. inv.2t to find the value of t for the interval calculation.
Answers: 1
Mathematics, 22.06.2019 06:20, donbright100
1) for the triangle shown, find the value of x. a) 4 b) 6 c) 8 d) 10 e) none of the above 2) for the triangle shown, find the value of y. a) 8 b) 8β2 c) 8β3 d) 16β3 e) none of the above
Answers: 1
Mathematics, 22.06.2019 06:30, flameftw2005
Dylan has built a simple clinometer by attaching a weighted string to the center of a protractor. he then attached a straw to the protractor to use as a sight. by looking at an object through the straw, dylan can determine the angle of elevation to that object. 1. dylan is using his clinometer to him determine the height of a tree. he stands 6m from the base of the tree and takes the measurement shown on the clinometer. then, he measures the height of his eye to be 1.6m above the ground a. sketch a diagram to represent this scenario.
Answers: 3
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Mathematics, 26.07.2019 20:00