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A salt-water mixture is being added to a tank at 4 L/min. The mixture has a concentration of .03 kg/L. The tank is initially filled with 60 L of water in which 3 kg of salt is dissolved. The tank mixture is being drained at 4 L/min. Find the formula for x(t), the number of kg of salt in the tank at time t.
A student is applying a force F=5 N on an object with mass m=3 kg. With that condition, that object slide with constant velocity v=2 m/s. Using gravity g=9.81 m/s2, derive value of kinetic friction coefficient between the object and the table.
Create an expression for your classmates to solve that uses scientific notation and at least one of the rules for exponents you have described.
find the distance between two ships from the word problem.from a lighthouse the lighthouse keeper sees two ships.nbsp
compute a 90% confidence interval for the mean serum cholesterol level of teenage males in this city. Assume that the sample was taken from a normal distribution. Round your confidence limits to 2 decimal places.
Using x as the variable, write the equation or inequality that would correctly solve this problem.A savings account increased by $75 is now more than $500. What is the least amount of money that was originally put in the savings account?
Trigonometric ratios, Learning the formula of trigonometric ratios creates confusion. There is trick to learn it i.e. “pandit bhadri Prasad har har bhole” when we put it in fraction then
evaluate the equation of the straight line from the givenfind the equation of the indicated curve subject to the given
A stone dropped in a still pond creates a circular ripple whose radius increases at a constant rate of 3 ft/s. At what rate is the area enclosed by the ripple increasing 8 s after the stone strikes the pond?
(a) Find the probability that a randomly chosen adult is obese, given that he or she suffers from diabetes. Round your answer to 2 decimal places.
Calculate the amount of work required to lift you from the surface of the moon where your weight is approximately 1/6 what it is on earth to an altitude of 200 miles?
A balloon rises vertically after it is released and is tracked by an observer 50 feet from the point of release. At a certain moment the angle between the balloon and the foot of the observer is and is changing at a rate of 2 rad/min. At what rate..
Write an integral for the arc length of the parametrized curve: x = cos(et) and y = sin(et) for 0 is less than or equal to t less than equal to 1. You need not evaluate the integral.
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