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Question:
Ali''s coffee shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Ali $5.55 per pound, and type B costs $4.40 per pound.
This month''s blend used three times as many pounds of type Bas type A, for a total cost of $693.75. How many pounds of type A coffee were used?
Find the quotient and leave the result in a +bi form. 15(cos 240° + i sin 240°) / 3(cos 30° +i sin 30°). Find the angle between the given vectors, to the nearest tenth of a degree. u=5i + 6j, v = 3i -2j.
Write the following in exponential form
Find the value of c when n = 5, n = 6. Graph c as a function of n. What is the limit of c as n increases without bound?
Identify a reciprocal function. Give an example of this function in the business environment. If we look at the formula to calculate the dollar amount of a $1 we put into savings today.
Denote the equivalence class of (a; b) by a=b and the set of equivalence classes by RS (called thelocalization of R at S). Show that RS is a commutative ring with 1.
Use elimination or substitution method equations.
A model rocket is launched upward with an initial velocity of 280 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h = -16t2 + 280t.
One day a store sold 29 sweatshirts. White ones cost $9.95 and yellow ones cost $12.50. In all, $319.15 worth of sweatshirts were sold. How many of each color were sold?
Solve the following algebraically
Compute the discriminant of the quadratic equation 3x^2+x+2=0, then write a brief sentence describing the number and type of solutions for this equation.
What are two symbolic techniques used to solve linear equations? Which do you feel is better?
A bird leaves its nest and travels 20 miles per hour downwind for xx hours. On the return trip, the bird travels 4 miles per hour slower and has 6 miles left after xx hours. What is the distance of the entire trip?
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