Find angle of depression from top of tower-point from base
The communications company erects the 83 foot tall cellular telephone tower on level ground. Find an angle of depression, (in degrees), from top of tower to the point 45 feet from base of tower.
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He has set up his transit on one side of lake 130 feet from piling which is directly across from the pier on other side of lake. From the transit, angle between piling and pier is 30 degrees. Find distance between piling and pier to nearest foot
Consider S = {0,2,4,6}, T = {1,3,5,7}, U = {6,7,8,9,10} and functions f = {(0,1),(2,3),(4,3),(6,7)} mapping S to T, and function g = { (1,6), (3,6), (5,9), (7,10)} mapping T to U. Write ordered pairs for function mapping S to U, g o f.
A university dean of students wishes to calculate approximately the average number of hours students spend doing home work per week. =6.2 hours from a previous study. How large a sample must be selected if he wants to be 90% confident of finding i
There are 9 judges in Supreme Court. Suppose 3 are "conservative", 4 are "liberal", and 2 are "neutral". Each and every judge acts independently, and yet on a certain UP/DOWN issue it is known that P( UP | conservative ) = 0, P( UP | neutral ) = 0
Convert to the rectangular equation curve provided by parametric equations by eliminating parameter. Find the graph. For what values of parameter t is graph in first quadrant?
Determine the linear regression of weekly sales on aptitude test scores. Interpret the estimated slope of regression line.
Needle of scale in bulk food section of the supermarket is 26cm long. Determine distance tip of needle travels when it rotates 64 degrees.
The average number of unhealthy days based upon Air Quality Index, AQI, in the random sample of 10 metropolitan areas was 33.5 as well as sample standard deviation was 27.7 days. Determine the 98% confidence interval of the true mean of unhealthy
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