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After 10 minutes temperature of water has reduced from 100 degrees C to 75 degrees C. Determine temperature after nine minutes.
You have $20000 dollars now and average rate of change in the net worth is $5000 per year. How much money will you possess in x year? In 40 Years?
Determine the domain of f(x)=1/x^2+2 and explain what should be done to graph of f(x)=sqrt x to get graph g(x) = sort x-3-2.
Every time it strikes ground, it bounces up to .75 of previous height. Find total distance does ball travel before it stops bouncing?
How many rows are in corner section of the stadium containing 672 seats if first row has 12 seats and each successive row has 2 extra seats?
Hotel tells you that they will raise temperature by 10% each hour. If present temperature of hot tub is 75 degree F, find temperature of hot tub after 3 hours to nearest 10th of the degree?
On same set of axes, graph C as the function of t for injections of 1, 2, 3, and 4 mg. Put scale on the axes. Write each graph with corresponding injection levels.
Solve system using substitution method. x+y=6; y=x^2-8x+16 By using synthtic division to divide f(x)=x^3+15x^2+71x+105 by x+7. Use results to find all zeros of f.
Determine airspeed of each plane of cities are 275 miles apart and planes pass each other after 40 minutes of flying time.
The radio telescope has the parabolic surface. If it is 1m deep and 8m wide, how far is focus from vertex? Determine partial-fraction decomposition of 6x+1/(3x+1)^2.
Write the equation which expresses relationship. Use k for constant of proportionality. r differs directly as square of s and inversely as the cube of t.
Use Descartes rule of signs to find possible number of positive and negative real zeros for given function. f(x)=6x8-9x7+x6-3x+18
Wrtite down form of partial fraction decomposition of rational expression. It is not essential to solve for constants. 2x-5/(x+2)(x^2+x-4)
Determine all critical points of f(x)=2x^4+16x^3+36x^2 and categorize each as the relative minimum, relative maximum, or neither one.
Assume terminal point on unit circle determined by number t is (-2/3, y). Assume point in quadrant II. (a) Determine value of y; (b) Determine values of six trigonometric functions of t
Determine area of the triangle with sides of length 8 and 30 and included angle 39 degrees.If first ship travels at 26 miles per hour and second ship travels at 34 miles per hour, how far apart are
Assume that the superball dropped from the height of 16ft always rebounds 1/2 of distance fallen. Approximately how far does ball travel before coming to rest?
The middle school mathematics teacher accepts the teaching position which pays $30,000 per year. Determine the expression for nth term of arithmetic sequence.
Due to market demand farmer will grow twice as many acres of wheat as of corn. He has assigned $57,000 for cost of growing his crops. How many acres of every crop must he plant?
Food A contains 0.11 unit of niacin and 130 units of retinol per gram. Food B has 0.27 unit of niacin and 70 units of retinol per gram. How many grams of every food does she feed this group of rats
Assume that demand equation for the certain commodity is q=500-2p (for 0 ≤ p ≤ 250). Find where (on what intervals) demand is elastic,inelastic, and of unit elastic with respect to price
Determine probability of indicated event. She gets one of each color other than fluorescent pink, provided that she gets fluorescent pink one.
Assume that the superball dropped from the height of 12 ft always resbounds 1/3 of distance fallen. Aproximately how far does ball travel before coming to rest?
If 6 days have passed since beginning of week, and sales records accurately forecasts results for number of movies sold, find highest number of movies store could currently have on shelves?
Assume you have the Scientific calculator where some keys are broken. Only keys which work are digits 0 to 9, +,-,x, Divide, ln and e^x. Describe how you can use this calculator to compute square ro