112-unknown-10spex01

112-unknown-10spex01 - MATH 112 SPRING 2010 EXAM ONE 590...

Info iconThis preview shows pages 1–9. 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 DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

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

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

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

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

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

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MATH 112 SPRING 2010 EXAM ONE 590 Minutes Name: W Instructor and section: —————‘————_—__________ . There are 10 problems on 11 pages (counting this page). . No calculators, notes, or books are allowed. . Give exact answers (fractions, square roots, etc.). Decimal approximations may not receive full credit. . You do not need to simplify your answers unless told to. Answers such as _32\/2—5+6 " 12 . Use only the scratch paper provided. Work appearing on your scratch paper will not be graded. as are okay. . Show your work and make your methods clear. Unjustified answers may receive no credit. . Incorrect work will be held against you. . Put your final answer in the box provided. . Please turn in your exam to your instructor. Problem Possible Score] Your Score 5— 1 a 15 J l 15 V 15 r 15 15 15 15 l 15 15 15 150 —r—1 ©OO\1®OTH>~QOL\D ,._~__L "‘I H g. >0 F" l——-—+—-—-'— 1. (15 Points) Basic Algebra ‘ Preform the given operations and simplify completely: (a) $2(2$)1/3 Answer: Answer: 2. (15 Points) Solve the following equation for 3:. Be sure to CHECK your answer(s) (and show it). [2:13—3|—I93+1}=O 3. (15 Points) Solve the following equation for ac. ‘ Show all work and be sure to CHECK your answer(s) (and Show it). V9+2x+3=x 4. (15 Points) Find the equation for the line perpendicular to the line'whose equation is 2:1: + 3y — 6 = O and passes through the point (—1,2). Explain and Show all work LEquatbn: . ‘J 5. (15 Points) The points (3, 2) and (—1,4) are endpoints of a diameter of a circle. Find the center and radius of the circle. Center: I Radius: j 6. (15 Points) Find the amounts of 10% acid solution and 20% acid solution which must be mixed in order to yield 40 liters of a 16% acid solution. Amount of 10% solution needed: Amount of 20% solution needed: 7. (15 Points) Solve the following nonlinear system of equations. Be sure to CHECK your answers. | l co x2+2y2 :v—y2 | CD ($73» : 8. (15 Points) Find the center and radius for the circle with the given equation. x2+y2—$+4y:7 Center: Radius: j 9. (15 Points) Use the distance formula to find the equation of the parabola with focus (2, 6) and directrix y = —-4. Solve for y. Equation of parabola: y: 10. (15 Points) (a) Find the intercepts for the graph of the following equation: y=3x2+2a3—6 x—intercept (s): y-intercept (s): (b) Find the discriminant of the following quadratic equation: 3x2+2x—6=O Discriminant: (c) What does the answer to part (b) tell you about the roots? (d) Is part (b) consistent with What you found in part (a)? Explain. ...
View Full Document

Page1 / 9

112-unknown-10spex01 - MATH 112 SPRING 2010 EXAM ONE 590...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online