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The boat travels 50 miles downstream in same time that it takes to go 30 miles upstream. Speed of boat in still water is constant 20 miles per hour. The speed of stream in mph is?
Grapes oscillate up and down with the period of 0.39 s, and spring in scale has the force constant of 620 N/m. (i) Determine mass of grapes? (ii) Find weight of the grapes?
If we suppose that vessel travels at the constant speed in still water and that river flows downstream at the constant speed, then river's speed of flow is how many mph?
Every occupied room costs $4 per day to clean and supply. On this basis, find price, in dollars, must you charge per unit per day to maximize the profit?
Highway side is 4.0 miles long, canal side is 4.0 miles long while railroad side is 6.0 miles long. Acre of this land will support one cow for two weeks. Find maximum of cattle that land will suppor
Create the coordinate system with positive y-axis projecting vertically upward from center of highway and x-axis crossing perpendicular to highway at ground level, positive axis to right.
At last, the mix of no Dumbium, 4 cc of Sillium, 3 cc of Deludium and 4 cc of Ignorium weighed 41.2 gms. Provided all this find weight of pure Dumbium per cc, correct to nearest tenth of a gm/cc?
Every occupied room costs $4 per day to clean and supply. On this basis, find price, in dollars, must you charge per unit per day to maximize profit?
Acme Mfg., Inc. produces 3 types of lawn tractor in one of its several plants, Mitymite. How many Powerhouses must be made so no unused time is left over?
The pulley has the diameter of 20 cm. It takes 5 seconds for 50 cm of belt to go around pulley. Determine angular speed of pulley in radians per minute.
Check statements P and Q below and then select the answer below which best explains P and Q. P: If the angle is in standard position and terminal side includes (0, -4) then angle is 225o.
Determine inverse of coefficient matrix by using row-reduction. Check that matrix which you have just discovered really is desired inverse. Illustrate the check.
Balance will be paid off in 48 monthly payments. Interest rate is 9% per year compounded monthly. Determine amount of every payment and amount of the loan which will be still owed after one year.
Angle of elevation from the point on ground to the top of the pyramid is 35deg50min. Angle of elevation from the point 165ft farther back to top of the pyramid is 28deg40min. Determine the height.
After holding the "sale", firm proposes that the $10 discount on price will yield the increase of 40 more widgets sold. Determine the linear pricing function p(x) based on the information.
At price P, and quantity sold x of the certain product has been found to be p=-1/6x +100, when 0(< or =) x (< or =) 600.
Number of grams of the element present at time T is provided by function Q(T)=Q0e^-0.00032T where Q0 is number of initial grams present. Determine the half life? Illustrate all steps.
Determine amplitude, period frequency, and find starting points and ending points for primary cycle. If possible, graph primary cycle with this information.
The force of F = 45 pounds exerted at the angle of A = 15° above the horizontal is needed to slide the table across the floor. Table is dragged d = 23 feet. Find the work done in sliding table.
Should you believe a statistical study?, Assignment 1: Should You Believe a Statistical Study? We are bombarded by statistical information from a wide variety of sources. Much of the statistical re
Number of dimes is 3 time number of nickels and quarters together. If box has 29 dollars and 35 cents, determine number of nickels, dimes, and quarters that it has.
Suppose that area covered by radioactive substance is linear function of time t and is always circular in shape, state radius r (in km) of contamination as a function of t (in days).
The college store paid $1572 for the order of 46 calculators. Store paid $11 for each scientific calculator. Others, all graphing calculators, cost store $52 each. How many of each kind of calculat
Relationship between temperature reading F on Fahrenheit scale and temperature reading C on Celsius scale is provided by C = 5/9 (F-32).
The object moving vertically is at given heights at specified times. Determine the position equation. s = 1/2at^2 + v0t + s0 for object.