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1. Solve the inequality. Write the solution in interval notation and graph the set on the number line. -2(x - 4) 3x + 1 - 5x
2. Solve the following problem by writing an equation and then solving the equation: You invest $7,200 in two accounts paying 8% and 10% annual interest respectively. At the end of the year, the accounts earn the same interest. How much was invested at each rate?
3. Solve the following problem by writing an equation and then solving the equation: How many ounces of 50% alcohol solution must be mixed with 80 ounces of 20% alcohol to make a 40% alcohol solution?
4. Write the equation of the line that contains the point (-2, 3) and is perpendicular to y = 2x + 7. Write the equation in slope-intercept form.
5. Solve the system of linear equations by the substitution method:
4x + 3y = 0;2x - y = 0.
6. Solve the system of linear equations by the addition method
a wheel whose radius is 1.5 was rolling without slipping along a horizontal surface. at a certain instant the angular
5x-y+9, 2x-2y+7, what is the solution?
There are many other sites that explain the quadratic formula. Find one of your own and share it with the class. Explain its contents.
Calculate the accumulated amount
How much of each kind of paint is needed to make 264 gallons of Ricky's Blush?
The goal is to better understand how different linear systems are related to each other, or in other words, what bifurcations occur in parameterized families of linear systems.
Discuss the validity of each statement. If the statement is always true, explain why. If not, give a counter example.
Factor the given algebraic expression.
Two cars leave a restaurant at the same time and travel in opposite directions. One averages 50 miles per hour and the other averages 40 miles per hour. After how long will they be 216 miles apart?
Linear equation on three variables
Find an equation for the line w/given properties Parallel to the line 5x-y=-10; containing the point (0,0). Find the equation of a line that is perpendicular to the line y=1/9x+9 and contains the point (-3,0)
find the surface area of a cylinder with a base radius of and a height of . write your answer in terms of and be sure
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