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Provided that the f(4) = 12 and f(7)=97.5. Write the linear equation in slope-intercept form for the line connection these point.
The mechanic is working on the car with the 20-quart radiator having 60% antifreeze solution. How much of solution must he drain and replace with pure water to get the solution which is 50% antifree
How many milliliters (ml) of 4% solution must be added to 7 ml of 1% solution to get the 3% tetracycline solution for use in eyes of the fifteen year old?
If they wish to make 50 pounds of mixture and sell for $1.92 per pond, how many pounds of each will they require to mix together?
Coming back against current, his normal rate is decreased by 2 mph. If trip downstream takes 10 minutes and return trip takes 30 minutes, then how far is Barry's camp from fishing hole?
Tara paid one-half of the lottery winnings to government for taxes. If she earned the total of $4000 on two investments in 1 year, then how much she won in lottery?
Trevor has the certain amount of money invested in the bank paying 2% annual interest and twice that amount in the CD paying 4% annual interest.
Julio owns the 4-sided lot which lied between two parallel streets. If his 90,000 ft2 lot has 500 ft frontage on one street and 300 ft frontage on other, then how far apart are streets?
Determine expression for power supplied if E= 9.33 at the angle of 82.2 volts and i=.0354 at the angle of -14.5 amperes. Determine power = in watts.
In the alternating current circuit voltage E is provided by E=IZ, where I is current (in A) and Z is impedance in ohms. If I is 0.609-.408j amperes and Z=220+150j ohms, determine complex number exp
For polynomial, write each real zero and its multiplicity. Find out whether graph crosses or touches x-axis at each x -intercept. f(x) = 4(x + 3)(x - 1)^3
Author is paid royalties of 10% on first 10,000 copies sold, 12.5% on next 5000 copies, and 17% on any additional copies. Determine the piecewise-defined function R which specifies total royalties i
Assume he can row at the rate of 3 mi/hr and can walk at the rate of 5 mi/hr. If T is total time required to reach house, state T as the function of x.
Grade resistanceis F=Wsin theta, where theta is grade an W is weight of automobile. Determine the grade resistance of the 1600 pound car traveling on the 1.3 degree uphill grade?
The radio transmission tower is 200ft high. How long must the guy wire be attached to tower 15ft from top and is to make the angle of 29 degrees with gound.
The certain radio isotope has the half life of 1650 years. How many years would be needed for the given amount of isotope to decay to 65% of that amount?
Suppose that is costs Microsoft approximately c(x) = 62500 + 550x + 0.01x^2 dollars to produce x Xbox 360s in a day. How many x boxes must be produced to minimize average cost?
The rectangular piece of cardboard, whose area is 216 square centimeters, is made into the cylindrical tube by joining together 2 sides of rectangle.
RRR discovers that demand for its rubies is presently 20 rubies per week and is decreasing at the rate of one ruby per week. How fast is price changing?
If wheels (comprising tire) of truck are 15 inches in radius, then how many revolutions will wheel make in hour if truck travels at steady speed of 50 miles per hour? Determine to nearest 10 revolu
Setting up her transit again, she discovers that her line of sight, CB, to tower is 81 degrees. Correct to nearest whole foot, how far is point C from tower?
Probe will shut down when wattage goes below 35 watts. Correct to nearest whole day, how many days after launch will probe shut down?
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?