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Concept explainers
The bar graphs show U. S. film box-office receipts, in millions of dollars, and box-office admissions, in millions of tickets sold, for five selected years.
Use the information and a calculator to solve exercises 87-88.
87.
a. use the data displayed by the bar graphs to find the average admission charge for a film ticket in 1990. Round to two decimal places, or to the nearest cent.
b. use the models to write an algebraic expression that describes the average admission charge for a film ticket x years after 1980.
c. use the model from part (b) to find the average admission charge for a film ticket in 1990. Round to the nearest cent. Does the model underestimate or overestimate the actual average charge that you found in part (a)? By how much?
d. Can the polynomial division for the model in part (b) be performed using the methods that you learned in this section? Explain your answer.
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Chapter 5 Solutions
Introductory Algebra for College Students (7th Edition)
- Solve the system of equation for y using Cramer's rule. Hint: The determinant of the coefficient matrix is -23. - 5x + y − z = −7 2x-y-2z = 6 3x+2z-7arrow_forwarderic pez Xte in z= Therefore, we have (x, y, z)=(3.0000, 83.6.1 Exercise Gauss-Seidel iteration with Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i Tol=10 to solve the following systems: 1. 5x-y+z = 10 2x-8y-z=11 -x+y+4z=3 iteration (x Assi 2 Assi 3. 4. x-5y-z=-8 4x-y- z=13 2x - y-6z=-2 4x y + z = 7 4x-8y + z = -21 -2x+ y +5z = 15 4x + y - z=13 2x - y-6z=-2 x-5y- z=-8 realme Shot on realme C30 2025.01.31 22:35 farrow_forwardUse Pascal's triangle to expand the binomial (6m+2)^2arrow_forward
- Listen A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet and t is the time in seconds. How many seconds will it take for the object to travel 112 feet? Round answer to 2 decimal places. (Write the number, not the units). Your Answer:arrow_forwardSolve by the quadratic formula or completing the square to obtain exact solutions. 2 e 104 OA) -16±3√6 B) 8±√10 O c) -8±√10 OD) 8±3√√6 Uarrow_forwardQuestion 14 (1 point) Listen The frame on a picture is 18 in by 22 in outside and is of uniform width. Using algebraic methods, what is the width of the frame if the inner area of the picture shown is 250 in²2? Write answer to 2 decimal places. (Write the number with no units). 18 in Your Answer: 22 inarrow_forward
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