AP Calc AB 2007FR

Test Preparation AP Test Preparation
1

<p>i have a few questions on the 2007 FR form B <a href=“College Board - SAT, AP, College Search and Admission Tools”>College Board - SAT, AP, College Search and Admission Tools;

<h1>1 c. can someone explain to me how to set up the integral? i don’t understand if it should be adding or subtracting a 1</h1>

<h1>2 d. is the answer t = 1.773 ?</h1>

<h1>3 b. so i’ve gotten that the avg rate of change of W is 17.996, and setting it equal to the instantaneous rate of change gives me</h1>

<p>S W’(v) = S 17.996
do i actually integrate it? meaning, will there be a +C constant that i’ll have to solve for, or do i simply use the eq W(v) = 17.996 ?</p>

<p>or, does anyone know where to find the solutions to these?</p>

2

<p>[Solutions</a> to the Free Response 2007 AP Test questions](<a href=“http://homepages.roadrunner.com/askmrcalculus/ap2007solutions.html]Solutions”>http://homepages.roadrunner.com/askmrcalculus/ap2007solutions.html)</p>

<p>For 1c, you have to subtract because you’re revolving it around y=1. This means the larger radius of the solid will be the distance between y=1 and y=e^(2x-x^2) and the smaller radius of the will be the distance between y=1 and y=2. Both of these involve subtracting 1.</p>

3

<p>ahh thank you so much!</p>