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Moreover, the correlation between male and female life expectancies was found to be 0.95. Use this information to estimate female life expectancy in a country where the male life expectancy is 62.8
A Ferris wheel at a carnival has a radius of 38 feet. Suppose it turns at a rate of 100revolutions per hour. Find the angular speed of the wheel in radians per hour.
Find the x-intercepts, y-intercept, and asymptotes for the graph of each function, and sketch the graph. f(x) = x3 - 3x2 + 4.
Consider an arithmetic sequence whose 5th term is 62 and whose 11th term is 32. Determine the generating function for this sequence and determine the 21st term.
What is the total amount paid for a $150,000 loan under these conditions? How much interest will be paid over the life of the loan?
Find the radius of the circle if an arch of length 6 meters on the circle subtends a central angle of pi/6 radians. How long is the arc through which the weight moves from one high point to the next h
Andrea flew at 170 mph on a course with a bearing of 80 degree, and Carlos flew at 230 mph on a course with a bearing of 120 degree. How far apart were they after 6 hours.
From city A to city B, a plane flies 850 miles at a bearing of N 58deg. E. From city B to city C, the plane flies 960 miles at a bearing og S 32deg. E. Find, to the nearest tenth of a mile, the dist
How many truckloads of each brand should be used to provide the required potash, nitrogen and phosphoric acid? Please Show work.
In a right triangle the length of a leg is 10, and the angle between that leg and the hypotnuse is 40°. Find the length of the hypotnuse and the other leg.
Estimate the amount of the drug in the body 7 hours after the initial dose. What percentage of the drug still in the body is eliminated each hour?
The simple interest for certain saving account is jointly proportional to the time and the principal. Write an equation relating to interest,principal, and time
car weighing 3,210 pounds is on a driveway inclined 20.2 deg to the horizontal. Neglecting friction, find the magnitude of the force parallel to the driveway that will keep the car from rolling down
Using triangles to construct the polygon and an appropriate double-angle formula, determine the formula of the area of the n-sided polygon as a function of R and n, i.e., A = f(R,n).
The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 8% per day. Find the mass of the sample after six days.
After three years, there is $1816.33 in the account. Find the initial amount placed in the account. Round your answer to the nearest cent.
Suppose also that a sample culture of 1000 bacteria is obtained from this population. Find the size of the sample after three hours. Round your answer to the nearest integer.
Using a calculator, determine the other angle and the remaining sides of the triangle. Express your answers using at least three decimal places.
If the angles of depression from the top of the antenna to each of the posts is 42^o and 40^o respectively, then the distance between the two posts is______atleast three decimal places.
A person starts walking from home and walks: 4 miles East. Find the total displacement vector for this walk. If this person walked straight home, they'd have to walk.
A chemist has two large containers of sulfuric acid solution, with different concentrations of acid in each container. What are the concentrations of sulfuric acid in the original containers?
What is the lowest price at which the item would be supplied? How many rings will be supplied if the unit price is P 4,600?
State Realty Corporation handles an apartment complex consisting of 100 units. What is the maximum monthly rental for each apartment unit?
Find the vertex, focus and directrix of the proabola. Sketch the graph, showing the focus and the directrix. If you can graph please do so.
If the width is somewhere in between 3 and 20 feet, what dimensions of the rectangle maximize the area enclosed in the fence?