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SAT SCORES Results of a Department of Education survey of SAT test scores in 22 states showed that
10 states had an average composite SAT score of at least 1000 during the past 3 years.
15 states had an increase of at least 10 points in the average composite SAT score during the past 3 years.
8 states had both an average composite SAT score of at least 1000 and an increase in the average composite SAT score of at least 10 points during the past 3 years.
a. How many of the 22 states had composite SAT scores of less than 1000 and showed an increase of at least 10 points over the 3-year period?
b. How many of the 22 states had composite SAT scores of at least 1000 and did not show an increase of at least 10 points over the 3-year period?
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Chapter 6 Solutions
Finite Mathematics for the Managerial, Life, and Social Sciences-Custom Edition
- Prove by mathematical induction that for any positive integer n, the sum of the cubes of the first n natural numbers is given by: n Σκ k=1 (n(n + 1))²arrow_forward1 L'Ina (ln x) 2020 dx 0arrow_forwardCalibri BIUAAAA ויו Text in Italian is not being checked. Do you want to add it as a proofing language? Task 12 Fig 1 75 75 75 Fig 2 Fig 3j Add Figures 1 to 3 each shows a top view and a front view of models. Make use of the lineated paper for isometric projection and take each block on the paper as being 10mm x 10mm. Use the indicated sizes and draw an isometric view of each of the three models Samsung Galaxy A04earrow_forward
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- I write with prove one-to-one linear Sanction but not onto Lexample.) b) write with Prove on to linear function but not oh-to-on (example). c) write with prove example x=y St Xandy two linear space over Sielad F.arrow_forwardUse the following graph of ƒ (x) to evaluate ƒ' (−1) and ƒ' (2). y +10+ 9 8 7 6 5 4 3 2 1- -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 x 3 4 0 8 9 10 -2 3 -4 5 -6 -7 -8 -9 -10- f'(-1)= f' (2)arrow_forwardFor the following function f and real number a, a. find the slope of the tangent line mtan = = f' (a), and b. find the equation of the tangent line to f at x = a. f(x) = 2 = ;a=2 a. Slope: b. Equation of tangent line: yarrow_forward
- For the following function f and real number a, a. find the slope of the tangent line mtan = f' (a), and b. find the equation of the tangent line to f at x = a. f(x) = 2x² + 3x; a = 2 a. Slope: b. Equation of tangent line: yarrow_forwardFor the following function f and real number a, find f' (a). f(x) = = √x+4; a = 0 f' (a)arrow_forwardFind the slope of the secant line between the values x₁ and x2 for the function y = f (x). Answer exactly or round to 2 decimal places. f(x) = √√x x7; x₁ = 11, x2 = 23 Slope:arrow_forward
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- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
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