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Magazine Problem 6
Use a quadratic equation to solve the problem. A lawn sprinkler waters a circular region of 1500 square feet. Approximate the diameter of the circular region that is watered by the sprinkler.
Problem 10
Use the Pythagorean Theorem to solve the problem. You are delivering pizzas to an apartment complex and a furniture store (see figure). You are required to keep a log of all mileages between stops. You forget to look at the odometer at the apartment complex, but after getting to the furniture store you record the total distance traveled from the pizza shop as 14 miles. The return distance on the beltway from the furniture store to the pizza shop is 10 miles. The route forms a right triangle. Find the possible distances from the pizza shop to the apartment complex.
Problem 21
Writing What are the four steps in solving a word problem?
Problem 44
Reasoning When is it best to use the Quadratic Formula to solve a quadratic equation?
Problem 53
Solve the percent equation. 5 is what percent of 35 ?
Problem 82
Use the discriminant to determine the number of real solutions of the quadratic equation. $$4 x^{2}-4 x+2=0$$
Problem 109
Write the polynomial in standard form. Then identify its degree and leading coefficient. $$12-8 x$$
