Lesson40 - The total time of the entire trip is 4 hours....

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Lesson 40 Section 8.2 Quadratic Formula: If 0 2 = + + c bx ax , then the value(s) of x can be found by a ac b b x 2 4 2 - ± - = . Note: b - mean the opposite of b 2 b is always positive ac 4 - means ( - 4)( a )( c ) Use the quadratic formula to solve the following quadratic equations. 1) x x - = - 2 2 2) 0 7 15 2 2 = - - t t 3) ) 2 ( 3 4 - = x x 4) ) 2 ( 4 7 ) 1 ( 5 - = - - x x x x
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 5) If 4 12 9 ) ( 2 - - = a a a f , find any a such that 0 ) ( = a f . 6) 10 ) 3 ( 2 8 = - + x x x 7) ) 2 ( 2 3 + = r r 8) x x 12 ) 1 ( 3 2 - = +
Background image of page 2
3 9) 2 2 If ( ) , find all for which ( ) 1 3 g x x g x x x = + = + 10) A boat travels 24 miles at a certain speed, and then continues for 30 miles farther at a speed that is 3 miles per hour faster.
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
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The total time of the entire trip is 4 hours. What is the speed for each part of the trip? Distance Rate Time 1 st part 2 nd part time for 1 st part + time for 2 nd part = 4 hours 4 11) Two hoses together can fill a pool in 2 hours. The larger hose alone can fill the pool is 3 hours less time than the smaller hose. How long would it take each hose alone to fill the pool? x = time alone for smaller hose x 3 = time alone for larger hose rates:...
View Full Document

This document was uploaded on 01/21/2012.

Page1 / 4

Lesson40 - The total time of the entire trip is 4 hours....

This preview shows document pages 1 - 4. Sign up to view the full document.

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