{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

21worksheet9 - $0LUTlD/US,— MATH 122 SECTION 021...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: $0LUTlD/US ,— MATH 122 SECTION 021 WORKSHEET 9 Show all work for full credit. 28 1. Use sum approximations to estimate / f (ac)da: What values of n and A96 did you 10 use? —- n:@ mm M ‘3 MS: /8(3)+ 25(5) + 37(3) “12(3) 435(5) 463(3) = 802? VHS = 25(3)+ 3715M 9213M Mo(3)+’+‘lls) “70633 = loz3 Esl-Wml-L: 807 2/023 = 2. Use sum approximations with n = 5 rectangles to estimate 20 / (3a: — 15)2da7. 8 Then use your calculator to evaluate integral and check the accuracy of your estimate. Ax 208 L n-/52 17.10% 5 2’ m—- so was- LHS: Z‘l ( Sl + 292% + 5H15w 93a3¢+ mass) : 78mg EH8: magma +5H7.5(o+ 930. so Hams»: + 2025) = Magofig 20 Z Ema: W8 Aewgi {ax-15M” Z : low 7.08 = 3. Find the area between the curves y = —x2 + 2:1: + 5 and y = x2 — 4a: — 15. A 5 (w) 5/[’xz+Zx+53-[x2"/><”5>ld>‘ 2 4. In a certain section of the country, the price of gasoline is currently $3 per gallon. It is estimated that t weeks from now, the price will be changing at the rate of r(t ) = 3.4m? + 1 cents (pper week. How much will gasoline cost 6 weeks from now? Give units. ojjwiétl 6% 1 377/3 654315 l AMA) P/ICC " 3+ DAD : 3'HO $//a"oy\ Cenis . 5. It is estimated that t days from now a farmer’s crop will be changing at a rate of Mt) = —3t2 + 19.575 — 9 bushels per day. By how much will the value of the farmer’s crop increase in the next week if the market price is $2 per bushel? Give units. 5 /-3+ nest ‘1)d£=?).7sasms , 1 value: 71.75 bass. 2 WW 6. A particle is moving so that its velocity (in feet per sec) is v(t) = 4 — 523 +252, where t is time in seconds. 8.. Find the Ddisplacement (change in position) of the particle in the first 10 seconds. Give “if M 5.97: in“: :- _m l ffit b. Find the total distance traveled by the particle in the first 10 seconds. Give units. i 'OM—suizla/i [email protected] 0 Seat 7. Using the ure, evaluate the integrals. a. /25g(t)dt=. —8+Z :- 1: b. /Osg(t)dt= “0’8 *2 ’- c./04|g(t)ldt= [Uig‘lfl ...
View Full Document

{[ snackBarMessage ]}