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The trunk weighing 35 kilograms is dragged 10 metres up the ramp that is being inclined at the angle of 12 degrees to horizontal by the force 90 N applied at the angle of 20 degrees to ramp.
Engineers only wish the force of 17 N to open door. How far away from point of rotation must they put handle of door?
The cords measure 1m and 3m. The 3m cords make the angle of 18 degrees with ceiling. Compute tension in each cord.
When engine is turned off, it cools according to Newtos Law of cooling with k=.0341, where time is measured in mins. Determine time required for engine to cool to 90f if surrounding temp is 60f.
Originally, earthquake was rated as 8.9 on Richter scale and then upgraded to 9.0. How many more times stronger is the earthquake of magnitude of 9 to earthquake of magnitude 8.9?
Graph h = f(t) where h is height above groumd (in meters) at time t in minutes. First find the suitable interval for t greater than or equal 0.
Assume that the investment of $200,000 grows to $240,000 in 2 years. At this rate, how long will be needed for $200,000 to double?
At what rate is person's money changing (in % per day) if 1/10 of money is spent each day? For previous question, how long will be required for 1/2 of money to be spent?
If you have graph f(x) which looks like the parabola with the vertex at (4,0) and other points at (0,8) and (8,8), then draw and label graphs of functions below.
Determine distance of blimp form observer A if angle of elevation as viewed by A is 31degrees and angle of elevation as viewed by B is 58degrees. Determine the height of blimp also.
Determine an equation of circle centered at A that passes through B. Determine the equation of circle having the diameter with endpoints A and B.
Determine minimum or maximum value of parabola f(x)=-x^2+8x-11 by first writing f(x) in form f(x)=a(x-h)^2+5. Ensure to say if your value is the maximum or minimum.
If wheels rotate at 125 revolutions per minute, determine the speed at which she is traveling in mi/hr. If the bike with 20 inch wheels was used, what should be the rpm if same speed was maintained?
Then substitute one at the time coordinates of every point to build and solve three linear equations in variables a, b and c.
Determine the periodic withdrawl for the annuity of $150,000 at 5% paid out monthly for fifteen years, leaving 200,000 in account at the end of fifteen years.
Utilizing measures of circumference and arc length, describe how to make the protractor which measures the angle's openness in grads.
The marketing department at Texas Instruments has discovered that when some calculators are sold at the price of p dollars, revenue (in dollars) as the function of price is.
Find vertex of parabola y = x2 + 3x + 1 to nearest tenth. Use the vertex formula. Draw graph of y = x2 + 3x + 1 using information you found in parts a and b.
Write the function which gives volume of water in tank at any time? Based on function, how fast is height of water dropping when volume is 12?
The drug is injected into the patient and concentration of drug in bloodstream is monitored. Explain what this means about drug's concentration in patient's bloodstream as time increase.
Determine the sum and product of zeros of equation 3x4 - 2x2 + 3x - 4 = 0? If sum of zeros of 2x2 - 3cx + 2x + c2 =0 equals product of roots, compute the possible values of c?
Where W is wealth level( how much money a person has) and P is number of people in population having that much money. Solve equation for P.
Let the following function. f(x) = (x - 5) if x = -4. Determine domain D and range R of f. Determine intervals on which f is increasing, is decreasing, or is constant.
The woman plans to row to the point on shore, and then walk to restaurant. If she can walk 3 mph, at what speed should she be able to row so that quickest way to get to restaurant is to row directly
Money deposited in the account earns 5.6% compounded continuously. How long will it take to double amount of money. No amount was given in problem.