{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

1105_Proj_2_Solutions_F11

# 1105_Proj_2_Solutions_F11 - Name Period MAC1105 Project 2...

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

MAC1105 Project 2 Fall, 2011 Name: 50l \.l.~'0'1\ S Period: (circle yours) TH 11:00 TH 12:30 TH2:00 Project 2 covers material associated with Test 2. It's due at the start of class on Tuesday 10/25/11. Where applicable, show work to justify answers and earn partial credit. 1. The Department of Natural Resources (DNR) sometimes places restrictions on the size of buildings placed within 100 feet of shoreline. The DNR restriction for the area of this building is 120 square feet. Suppose we want to construct a shed with area 120 square feet, but its length must be 7 feet longer than its width. a) Let x = the width of the shed. Given that area of a rectangle is length times width, write an equation that gives area as a function of the width dimension x. y= X(~+7) er y;;.X"'Lt-7x. b) Find the length and width ofifthe shed is to have area 120 square feet. Two 'Npo. ..y~ .s bw- Wow, 2-. - t" 1'20 ':::- X + 7>< (;):: X'2. .-t- 7)(-12. .0 o == X'2- + 7'1- - (2. . 0 X = .:1 i 0(1])"2.- 't(t'f-I2.()) o -= (X+ I 5") (x-8) )(_ -1 ± ~(')_ -1:t 2.3 -e, _\~ or ~ )(-+-1 t7=-o ,(-9:'0 - 2. - Z x!:: - PS )( ~ ~ w~~ <:0. ...,'+ bR.- ~cd-\ ~ J.\$() W't~~ m4 b.e. . ~ Feet: ~V'ljtk ·,s + I Answers: Length = (5" feet and width = g feet 1 Fee 0 1e r:-) ---J--=----- -=--- 0" 15 feet 2. For each quadratic function, find the discriminant and use it to predict the number of real or imaginary zeros for the function. Then fmd these zeros and simplify them completely. List

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 4

1105_Proj_2_Solutions_F11 - Name Period MAC1105 Project 2...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online