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Write the formula for the arithmetic sequence. Then, find the twentieth term. 11) 15, 10, 5, 0, -5 Recursive Formula: Recursive Formula: az = ? an = an-1+ d %3D Explicit Formula: Explicit Formula: .an = a1 + (n – 1)(d) a20 =

Write the formula for the arithmetic sequence. Then, find the twentieth term. 11) 15, 10, 5, 0, -5 Recursive Formula: Recursive Formula: az = ? an = an-1+ d %3D Explicit Formula: Explicit Formula: .an = a1 + (n – 1)(d) a20 =

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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If the sequence is arithmettic, if so, find the common difference. 9) 67, 60, 53, 46, ... 10) 4, 8, 16, 32, ... Write the formula for the arithmetic sequence. Then, find the twentieth term. 11) 15, 10, 5, 0, -5 Recursive Formula: Recursive Formula: az =? an = an-1 + d Explicit Formula: . An = a1 + (n – 1)(d) Explicit Formula: a20 = 3-5 & 3-6: 12. The length of a call (in minutes) and the cost of a call (in dollars) is shown in the table below. a. Construct a scatter plot of this data. Phone Call Costs Length of call (min) 3 12 19 23 Cost of call ($) 1.50 2.40 5.55 8.70 10.50 a. Describe the association/correlation of the data. b. Estimate what the correlation coefficient might c. Find the equation for the line of best fit. SHOW ALL WORK. d. Using your equation from above, predict the cost of a call that is 43 minutes long.
Transcribed Image Text:If the sequence is arithmettic, if so, find the common difference. 9) 67, 60, 53, 46, ... 10) 4, 8, 16, 32, ... Write the formula for the arithmetic sequence. Then, find the twentieth term. 11) 15, 10, 5, 0, -5 Recursive Formula: Recursive Formula: az =? an = an-1 + d Explicit Formula: . An = a1 + (n – 1)(d) Explicit Formula: a20 = 3-5 & 3-6: 12. The length of a call (in minutes) and the cost of a call (in dollars) is shown in the table below. a. Construct a scatter plot of this data. Phone Call Costs Length of call (min) 3 12 19 23 Cost of call ($) 1.50 2.40 5.55 8.70 10.50 a. Describe the association/correlation of the data. b. Estimate what the correlation coefficient might c. Find the equation for the line of best fit. SHOW ALL WORK. d. Using your equation from above, predict the cost of a call that is 43 minutes long.
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