2016 bc calc frq

AP® Calculus BC 2003 Free-Response Questions. The materials included in these files are intended for use by AP teachers for course and exam preparation; permission for any other use must be sought from the Advanced Placement Program®. Teachers may reproduce them, in whole or in part, in limited quantities for noncommercial, face-to-face ...

2016 bc calc frq. Reply. stevecho816 • 6 yr. ago. 5a) The correct derivative should be -15/4. 6c) The next term should be x 5 because p4 represents the 4th degree Taylor polynomial, so the next degree should be x 5. EDIT: 6a) The general term for the Maclaurin series should be (-1) n+1 (x) n / n because the first term should be positive.

2019 AP® CALCULUS BC FREE­RESPONSE QUESTIONS 5. Consider the family of functions 1 fx() x 2 − 2x k, where k is a constant. (a) Find the value of k, for k! 0, such that the slope of the line tangent to the graph of f at x 0 equals 6. (b) For k −8, find the value of fx d() 1 x 0 . (c) For k 1, find the value of fx d()x 0 2

CALCULUS AB FREE-RESPONSE QUESTIONS CALCULUS AB SECTION II, Part A Time—30 minutes Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. A tank has a height of 10 feet. The area of the horizontal cross section of the tank at height h feet is given by. the function A, where . Ah ()is measured in square feet. The ... CALCULUS BC FREE-RESPONSE QUESTIONS CALCULUS BC SECTION II, Part B NO CALCULATOR IS ALLOWED FOR THESE QUESTIONS. 3. The function f is differentiable on the closed interval [−6, 5 ] and satisfies f (− ) 2 = 7. The graph of f ¢, the derivative of f, consists of a semicircle and three line segments, as shown in the figure above. For the solid, at each x the cross section perpendicular to the x -axis is. a rectangle with area given by xe x 5. Find the volume of the solid. 5 Volume = ∫ xe x 5 dx. Definite integral 1 point. Using integration by parts, u = x dv = e x 5 dx du = dx v = 5e x 5. u and dv 1 point. ∫ xe x 5 dx = 5xe x 5 − ∫ 5e x 5 dx.AP Calculus 2010 BC FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver June 7, 2017 1 Problem 1 1.1 Part a At 6 AM, 7 R 6 0 te costdtcubic feet of snow have accumulated. Integrating numerically, we find that 142:17469 cubic feet have accumulated by 6 AM. 1.2 Part bSince it is from 0-1, and there are 50 rectangles, each width is 1/50, so that make (i/50)² the length. But this length is just the function f (x) and the width is delta x. The formula for delta x = (a + b)/n, where a is the left bound, and b is the right bound, and n number of rectangles. and the other formula is. x_i = a + i*delta x.Created Date: 4/27/2018 1:09:04 PM

CALCULUS BC SECTION II, Part A. A graphing calculator is required for these problems. 1. The temperature of water in a tub at time t is modeled by a strictly increasing, twice-differentiable function W, where W t is measured in degrees Fahrenheit and t is measured in minutes. At time t 0, the temperature of the water is 55 F.Walkthrough of the 2016 AP Calculus AB FRQ #1. Thanks for watching the video. I have a lot more free problem solving videos on my website for AP Calculus as ...CALCULUS BC SECTION II, Part B. No calculator is allowed for these problems. 4. The rate, in calories per minute, at which a person using an exercise machine burns calories is modeled by the function f. In the figure above, f ( t ) = - 1. 2 + 1 for 0 £ t £ 4 and f is piecewise linear for 4 £ t £ 24.AP® Calculus BC 2016 Scoring Guidelines © 2016 The College Board. College Board, Advanced Placement Program, AP, AP Central, and the acorn logo are registered ...AP CALC BC PRACTICE ap calculus bc practice exam from the 2016 administration this exam may not be posted on school or personal websites, nor electronically. Skip to document. University; High School. ... Free-Response Questions Multiple-Choice Answer Key Free-Response Scoring Guidelines Scoring Worksheets Question Descriptors and Performance ... (d) The average value of gon [1;4] is 2ˇ 4 Z 4 1 g(r)dr= ˇ Z 4 1 1 8cos3(1:57 p r) dr: (5) Carrying out a numerical integration, we nd that the required average value is

Question 2. At time t, the position of a particle moving in the xy-plane is given by the parametric functions ( x ( t ) , y ( t ) ) , where dx = t 2 + sin ( 3 t 2 ) dt . The graph of y, consisting of three line segments, is shown in the figure above. At t = 0, the particle is at position ( 5,1 ) . Find the position of the particle at t = 3.Reply. stevecho816 • 6 yr. ago. 5a) The correct derivative should be -15/4. 6c) The next term should be x 5 because p4 represents the 4th degree Taylor polynomial, so the next degree should be x 5. EDIT: 6a) The general term for the Maclaurin series should be (-1) n+1 (x) n / n because the first term should be positive.Determine the x-coordinate of the point at which g has an absolute maximum on the interval - 4 £ x £ 3. Justify your answer. (c) Find all values of x on the interval - 4 < x < 3 for which the graph of g has a point of inflection. Give a reason for your answer. (d) Find the average rate of change of f on the interval - 4 £ x £ 3.Let R be the shaded region bounded 1 by the graph 2 of = −2x in the x 2 the line above. yy xe graph , y 2 x , and the vertical line x 1, as shown. in the figure above. Find the area of R. = ∫. 1. (b) Area Write, but do ( y1 not − y2 evaluate, )dx = R is. 0 rotated about the horizontal. 2016 AP Calculus BC Exam Free Response Question #6The Series question! Write four nonzero terms of a Taylor polynomial and the general term. Determine conv...

Costco coming to anderson sc.

AP Calculus 2019 BC FRQ Solutions. Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 21, 2019. 1 Problem 1. 1.1 Part a. Because sh enter the lake at the rate E(t) = 20+15sin ˇt 6 , with tin hours after midnight, the number, F, of sh that enter the lake over the 5-hour period from t= 0 to t= 5 ...AP® Calculus BC 2002 Free-Response Questions. The materials included in these files are intended for use by AP teachers for course and exam preparation in the classroom; permission for any other use must be sought from the Advanced Placement Program®. Teachers may reproduce them, in whole or in part, in limited quantities, for face-to-face ...AP® Calculus BC 2002 Free-Response Questions Form B. The materials included in these files are intended for use by AP teachers for course and exam preparation in the classroom; permission for any other use must be sought from the Advanced Placement Program®. Teachers may reproduce them, in whole or in part, in limited quantities, for face-to ...2014 RELEASED FREE RESPONSE SOLUTIONS - MR. CALCULUS 2014 BC #6 (no calculator) (a) Using the Ratio test: lim. n→∞. 2n+1(x−1)n+1. n+1 i. n. 2n(x−1)n.Math180 final spring 2016; Math180 final spring 2015; ... A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A CALCULUS BC SECTION I, Part A Time—1 hour Number of questions— NO CALCULATOR IS ALLOWED FOR THIS PART OF THE EXAM. ... AP Calc BC 2019 - MCQ FRQ. Course: Calculus I (MATH 180) 285 Documents. Students shared 285 documents ...The College Board. The College Board is a mission-driven not-for-profit organization that connects students to college success and opportunity. Founded in 1900, the College Board was created to expand access to higher education. Today, the membership association is made up of more than 5,900 of the world’s leading educational institutions and ...

2017 AP Calculus AB & AP Calculus BC Exam Free Response Question #3Note: In part d, I got the slope of a line wrong! (Nice work me!) f''(-5) = -1/2 because...CALCULUS AB SECTION II, Part B. Time—45 minutes Number of problems—3. No calculator is allowed for these problems. 4. The rate, in calories per minute, at which a person using an exercise machine burns calories is modeled by the function f. In the figure above, f ( t ) = - 1.2017 RELEASED FREE RESPONSE SOLUTIONS - MR. CALCULUS 2017 BC #2 (calculator) (a) Area of R= 1 2 (f(θ))2dθ≈.6484143709 023K subscribers. 348. 64K views 7 years ago AP Calculus Working with First Derivative FRQs. 2016 AP Calculus AB & AP Calculus BC Exam Free Response Question #3 Accumulation function...May 8, 2016 · 2016 AP Calculus AB & AP Calculus BC Exam Free Response Question #1Typical rate in/rate out problem. Approximate a derivative. Use a left Riemann sum and d... BC: Get the latest Brunswick stock price and detailed information including BC news, historical charts and realtime prices. Indices Commodities Currencies StocksIf you are planning to invest, there’s no better place to look for high-quality growth stocks than the portfolio of Cathie Wood, the founder of Ark Invest. Get top content in our f...AP Calculus 2016 AB FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 27, 2017 1 Problem 1 1.1 Part a We estimate R0(2) as R0(2) ˘ R(3) R(1) 3 1 = 950 1190 2 = 120 liters/hour2: (1) 1.2 Part b To estimate the total amount of water removed from the tank during the time intervalWrite your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2023 College Board. 5. The graphs of the functions f and g are shown in the figure for 12. 0 £ x £ 3. It is known that g(x) =. 3 + x. for x . 3 AP® CALCULUS AB/CALCULUS BC 2017 SCORING GUIDELINES Question 4 (a) H′(0 )− = 1 4 (91 16−27 )− =H ( )0 =91 An equation for the tangent line is y =91 −16 . t The internal temperature of the potato at time t =3 minutes is

Quiz yourself with questions and answers for BC Calc Final FRQ's, so you can be ready for test day. ... Set p'(t)=0 and use calc to find intersect which is 1.722. Since p'(t) changes from positive to negative at this point, it has a maximum at t= 1.722. dy/dt = -0.02y^2 which has a negative slope. It cannot because the graph should only ...

The response earned 6 points: 3 points in part (a), no points in part (b), 1 point in part (c), and 2 points in part (d). In part (a) the student correctly presents the first four nonzero terms of the series to earn the first 3 points. The student does not present a general term. In part (b) the student does not identify the correct endpoints ...AP® CALCULUS AB/CALCULUS BC 2014 SCORING GUIDELINES. 1. Grass clippings are placed in a bin, where they decompose. For 0 ≤ t ≤ 30, the amount of grass clippings remaining in the bin is modeled by A ( t ) = 6.687 ( 0.931 ) t , where A ( t) is measured in pounds and t is measured in days. Find the average rate of change of A(t) over the ...distance, in feet, traveled by rocket A from t = 10 seconds to t 70 seconds. (c) Let vB t be the velocity of rocket B at time t. Rocket B is traveling faster at time t 80 seconds. = y − ≠ 2. Let y = f. ( ) x be the particular solution to this − differential equation with the initial condition f 1 ( − ) = − 4.ap16_calculus_ab_q3 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. An old FRQ for AP CalcThe function g has derivatives of all orders, and the Maclaurin series for g is. ∞ x 2 n + 1 3 5. ( − 1 ) n. = x − x + x − . = 0 2 n 3 3 5 7. Using the ratio test, determine the interval of convergence of the Maclaurin series for g. The Maclaurin series for g evaluated at x = 1. 2 is an alternating series whose terms decrease in absolute.08-May-2016 ... 2016 AP Calculus AB Exam Free Response Question #6 Table problem. Using the chain rule and then reading values from the table to write a ...Test prep resources for you AP Calculus BC free response questions. Prior year questions, video solutions, and FRQ practice problems for AP Calc. ... In these he solves the 2021 AP Calc free response questions. Be sure to try the questions first, then watch the videos. ... Course Description. The 2016 official course description also includes ...1. (feet) 50.3 (square feet) 14.4 6.5 10 2.9 A tank has a height of 10 feet. The area of the horizontal cross section of the tank at height h feet is given by

Am 1180 news.

Ottumwa nail salons.

In 2016 FRQ 4, given a differential equation, we find the second derivative, determine if it is a maximum or minimum at a given point, use L'Hopital's rule t...CALCULUS BC FREE-RESPONSE QUESTIONS . CALCULUSBC SECTION II, Part B. Time—1 hour. Number of questions—4. NO CALCULATOR IS ALLOWED FOR THESE QUESTIONS. 3. The continuous function . f is defined on the closed interval . −6 £ x £5. The figure above shows a portion of . the graph of . fCALCULUS BC SECTION II, Part A. Time—45 minutes Number of problems—3. A graphing calculator is required for some problems or parts of problems. 1. Let R be the region bounded by the graphs of y sin p x. 3 and y x. 4 x , as shown in the figure above. Find the area of R. The horizontal line y 2 splits the region R into two parts.10. 1. in line 1. The correct antiderivatives, 2h2 and 1 t , are presented in line 2, and the response earned the second. 10 point. In lines 2 and 5, the response includes a constant of integration and uses the initial condition h 0 5 by substituting 0 for t and 5 for h. The response earned the third point.AP® CALCULUS BC 2012 SCORING GUIDELINES Question 2 © 2012 The College Board. Visit the College Board on the Web: www.collegeboard.org. For ≥0,t a particle is ...CALCULUS BC SECTION II, Part A. Time—30 minutes Number of problems—2. A graphing calculator is required for these problems. 1. A cylindrical can of radius 10 millimeters is used to measure rainfall in Stormville. The can is initially empty, and rain enters the can during a 60-day period. The height of water in the can is modeled by the ...AP Calculus 2018 BC FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 22, 2018 1 Problem 1 1.1 Part a During the time interval 0 t 300, Z 300 0 r(t)dt= 44 Z 300 0 t 100 3 1 t 300 7 dt= 270 (1) people enter the line for the escalator. (Fortunately, the problem is calculator active ...back to mr calculus. mr. calculus 2018 released free response solutions ab/bc 1 ab 2 bc 2AP Calculus BC 2016 Free Response Questions - Complete Paper (pdf) AP Calculus AB and BC 2016 Free Response Question 1. Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations. ….

The response earned 6 points: 3 points in part (a), no points in part (b), 1 point in part (c), and 2 points in part (d). In part (a) the student correctly presents the first four nonzero terms of the series to earn the first 3 points. The student does not present a general term. In part (b) the student does not identify the correct endpoints ...By definition, the annual percentage rate (APR) is the percent of your loan balance that you pay per year as a cost of borrowing money. The cost can include both interest and fees....Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. A tank has a height of 10 feet. The area of the horizontal cross section of the tank at height h feet is given by the function A, where A h is measured in square feet. The function A is continuous and decreases as h. ()CALCULUS BC FREE-RESPONSE QUESTIONS. The graphs of the polar curves r = 4 and r = 3 + 2 cos. p 5p. at q = and q = . 3 3. (a) Let R be the shaded region that is inside the …AP® Calculus BC 2005 Scoring Guidelines Form B The College Board: Connecting Students to College Success The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the association is composed of more than 4,700 schools, colleges, universities, and other2016 AP Calculus AB & AP Calculus BC Exam Free Response Question #1Typical rate in/rate out problem. Approximate a derivative. Use a left Riemann sum and d...AP Calculus 2018 AB FRQ Solutions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 22, 2018 1 Problem 1 1.1 Part a During the time interval 0 t 300, Z 300 0 r(t)dt= 44 Z 300 0 t 100 3 1 t 300 7 dt= 270 (1) people enter the line for the escalator. (Fortunately, the problem is calculator active ...Besides the complete practice test, the only official AP Calculus BC multiple choice practice questions are found in the AP Calculus Course and Exam Description. Beginning on page 228 there are 22 multiple-choice questions you can use to practice. The questions include answers and the major skills each question tests. 2016 bc calc frq, f, are given for selected values of xin the table above. (a) Write an equation for the line tangent to the graph of fat x= 1. Use this line to approximate f()1.4 . (b) Use a midpoint Riemann sum with two subintervals of equal length and values from the table to approximate () 1.4 1. f′xdx., About the Exam. The AP Calculus BC Exam will test your understanding of the mathematical concepts covered in the course units, as well as your ability to determine the proper formulas and procedures to use to solve problems and communicate your work with the correct notations. A graphing calculator is permitted for parts of the exam., The College Board. The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the association is composed of more than 5,600 schools, colleges, universities and other educational organizations. Each year, the College Board serves seven million students ..., Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2. A particle moving along a curve in the xy-plane is at position ( x ( t ) , y ( t ) ) at time t 0 . The particle moves in. , A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. People enter a line for an escalator at a rate modeled by the function r given by ⎧ ⎪ t t. 3 7 ⎪⎪ 44 1 for 0 ££ t ⎪ ()(rt ()=⎨ 100 300− ) 300 ⎪⎪ ⎪⎪ ⎩ 0 for . t >300, where . rt ()is measured in people per second and . t . is measured in seconds. As people get on ..., y = cx 4 x 2 , for some c. Each spinning toy is in the shape of the solid generated when such a region is. −. revolved about the x-axis. Both x and y are measured in inches. (a) Find …, AP® CALCULUS AB/CALCULUS BC 2018 SCORING COMMENTARY Question 1 Overview The context of this problem is a line of people waiting to get on an escalator. The function r models the rate at which people enter the line, where t t3 7 rt 44 1 100 300 for 0 t 300, rt 0 and for t 300; rt, AP Calculus BC Scoring Guide Unit 4 Progress Check: FRQ Part B Copyright © 2017. The College Board. These materials are part of a College Board program., All of their 2021 video solutions can be viewed right here. 2021 AP Calculus BC Free Response Question 1 Solution [Student] You can check out this project from past years here (2019), here (2018), here (2017), and here (2016). Many more Williston student screencasts can be found online right here. Posted in: AP Calculus BC, Calculus, Math News ..., 08-May-2016 ... 2016 AP Calculus AB Exam Free Response Question #6 Table problem. Using the chain rule and then reading values from the table to write a ..., VANCOUVER, BC, Oct. 27, 2020 /CNW/ - Genome British Columbia (Genome BC) is thrilled to congratulate two BC-led teams for their projects designed ... VANCOUVER, BC, Oct. 27, 2020 /..., Additional Practice Problems:Differential Equations: AP Calc BC FRQ 2016 #4Taylor/Mclaurin Polynomials: AP Calc BC FRQ 2014 #6Euler's Method: AP Calc BC FRQ ..., AP Calculus AB 2015 Questions And Answers - Online Math Learning. AP Calculus AB 2015 Free Response Question 2. Let f and g be the functions defined by f (x) = 1+ x + e x2 - 2x and g (x) = x 4 - 6.5x 2 + 6x + 2. Let R and S be the two regions enclosed by the graphs of f and g shown in the figure above. (a) Find the sum of the areas of regions R ..., Here's my solution: FRQ Focus Studies! So what is a focus study exactly? If we look through the past AP exam questions on AP Central, we as teachers tend to notice that there are certain "types" of FRQs that tend to appear each year: 1) Rate In/Rate Out, 2) Graphical Stem, 3) Tabular, and 4) Differential Equations to name a few. While we ..., 2014 RELEASED FREE RESPONSE SOLUTIONS - MR. CALCULUS 2014 BC #6 (no calculator) (a) Using the Ratio test: lim. n→∞. 2n+1(x−1)n+1. n+1 i. n. 2n(x−1)n., A correct. response will find the slope of the tangent line when t = 0 is dM = 35 and then use the tangent line equation, dt t = 0 4. y = 5 + 35 ( ) ≈ 4 t , to find that M 2 22.5. In part (c) students were asked to find an expression for d M 2 2 in terms of M and then to use d M to reason dt 2 dt 2., Here are the full solutions for the 2014 AP Calculus Free Response Questions. These comprehensive solutions were written through the hard work of Mr. Calculus himself. The AP Calculus questions themselves are copyrighted by Collegeboard, and are not reproduced. However, you can easily view them from the Collegeboard website for AP Calculus., Values of f ′ , the = ( ) = derivative of f, are given for selected values of x in the table above. (a) Write an equation for the line tangent to the graph of f at x 1. Use this line to approximate f 1.4 . = ( ) (b) Use a midpoint Riemann sum with two subintervals of equal length and values from the table to. 1.4 1.4. , May 8, 2016 · 2016 AP Calculus AB & AP Calculus BC Exam Free Response Question #1Typical rate in/rate out problem. Approximate a derivative. Use a left Riemann sum and d... , For each AP Calc BC FRQ, you'll receive a score from 0-9. Free-response questions contain multiple parts, and you'll receive a certain number of points (typically 1-3) for each part of the question. The points you earn from the free-response section will be combined with your multiple-choice section score, then converted to your final AP score ..., The Calculus AB free-response section is split into two parts: Part A: 2 questions, 30 minutes, graphing calculator required. Part B: 4 questions, 60 minutes, calculator not permitted. Altogether, this section counts for 50% of your AP Calc AB score (the other half is your multiple-choice section score)., 3 2015 AB AP Calculus Free-Response Solutions and Notes Question AB-1 (a) 8 0 ³R tdt­|76.570 .1 (b) R 3 ­|5.086 and D 3 ­ 5.4 . Since RD 33 , the amount of water is decreasing. (c) The amount A of water in the drain at time t, for 08ddt, is given by t 0 A tRuDudu 30 ³, so Ac tRt Dt . Atc 0 at­t | 3.2716584.Let T.2 The candidates for the minimum are t = 0, t = T, and t = 8., mr. calculus 2016 released free response solutions ab/bc 1 ab 2 bc 2 ab/bc 3 ab 4 bc 4 ab/bc 5 ab 6 bc 6. back to mr calculus ..., In this video we go over the Calculus BC Free Response Question (FRQ) 2016 #6. In this problem, we analyze a Taylor series, its interval of convergence, and..., 2018 AP. CALCULUS BC FREE-RESPONSE QUESTIONS. CALCULUS BC. SECTION II, Part A. Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. People enter a line for an escalator at a rate modeled by the function., AP Calculus AB 2016 Free Response Questions - Complete Paper (pdf) AP Calculus AB 2016 Free Response Question 1. Water is pumped into a tank at a rate modeled by W(t) = 2000e-t 2 /20 liters per hour for 0 ≤ t ≤ 8, where t is measured in hours. Water is removed from the tank at a rate modeled by R(t) liters per hour, where R is ..., 2022 AP Calculus AB & AP Calculus BC Exam Free Response Question #4(Definitely got part a wrong when I simplified! Don't simplify!!!)Full playlist: https://..., There are also four free-response questions. AP Calculus BC Free-Response Sample Questions. Fortunately, there are many more official free-response Calc BC questions available, so you'll have a lot to practice with. The College Board has released free-response questions from 1998 to 2019. That's over twenty years worth of free-response questions!, AP Calculus AB & AP Calculus BC 2018 Exam Free Response Question #1Rate in/rate out problem. You can use a calculator. Find total entering. Use an accumul..., CALCULUS BC SECTION II, Part A. Time—45 minutes Number of problems—3. A graphing calculator is required for some problems or parts of problems. 1. Let R be the region bounded by the graphs of y sin p x. 3 and y x. 4 x , as shown in the figure above. Find the area of R. The horizontal line y 2 splits the region R into two parts., 2018 AP. CALCULUS BC FREE-RESPONSE QUESTIONS. CALCULUS BC. SECTION II, Part A. Time—30 minutes. Number of questions—2. A GRAPHING CALCULATOR IS REQUIRED FOR THESE QUESTIONS. 1. People enter a line for an escalator at a rate modeled by the function., AP® CALCULUS AB 2017 SCORING GUIDELINES Question 2 (a) (∫ 2 f t)dt = 20.051175 1 : integral 0 20.051 pounds of bananas are removed from the display table during the first 2 hours the store is open. 2 : {1 : answer (b) f ′(7 )=−8.120 (or −8.119 ) After the store has been open 7 hours, the rate at which bananas are, AP Calculus BC Practice Exams Free Response Notes Videos Study Guides. Use these free online resources to prepare for the AP Calculus BC free response questions. Review the prior year questions and utilize the FRQ video solutions that we have linked below.