1 Linear Equations and Inequalities 1.9 Homework Answers: Required: #1-7 Extra credit: #8-10
Homework Answers: 1.9 #1
#7
#2
#8
#3
#9
#4
#10
#5 #6
Homework Answers: #1 Find and graph the solution set.
7 x − 3 ≥ −31 7 x ≥ −28 x≥− −4 4 −4
Back
Homework Answers: #2 Find and graph the solution set.
80 > 12 x + 8 72 > 12x
6>x Reverse!
x<6 6
Back
Homework Answers: #3 Find and graph the solution set.
7 − 3x < 37 −3x < 30 x > −10 −10
Back
Reverse!
Homework Answers: #4 Find and graph the solution set.
7 − 2 x ≤ 3x − 3 −2 x ≤ 3x − 10 −5 x ≤ −10
Reverse!
x≥2 2
Back
Homework Answers: #5 Find and graph the solution set.
7 x − 15 − 3 x < 14 − 6 x + 11 4 x − 15 < 25 − 6 x 4 x < 40 − 6 x 10 x < 40
x<4 4
Back
Homework Answers: #6 Find and graph the solution set.
4 − 5(4 x − 12) ≤ 144
4 − 20 x + 60 ≤ 144 −20 x + 64 ≤ 144 −20 x ≤ 80
Reverse!
x ≥ −4 −4
Back
Homework Answers: #7 Find and graph the solution set.
3x + 1 <5 −4
3x + 1 > −20 3x > −21 x > −7 −7
Back
Reverse!
Homework Answers: #8* Find and graph the solution set.
−9 x + 2 4 x − 5 ≤ −6 3 −27 x + 6 ≥ −24 x + 30
−3x ≥ 24 x ≤ −8 −8
Back
Cross multiply Reverse!
Reverse!
Homework Answers: #9* Find and graph the solution set.
ax − b > 2c, for a, b, c > 0 ax > 2c + b 2c + b x> a 2c + b a
Back
Homework Answers: #10* The final grade for a class is calculated by taking 75% of the average test score and adding 25% of the homework score. If the scores are out of 100 and a student has a 72 test average, what must the student average on homework to have a final grade of at least 80?
Final grade = 0.75(test) + 0.25(hw) 0.75(72) + 0.25h ≥ 80 54 + 0.25h ≥ 80 0.25h ≥ 26 h ≥ 104 Back
Graphing Linear Inequalities Practice Worksheet.pdf. Graphing Linear Inequalities Practice Worksheet.pdf. Open. Extract. Open with. Sign In. Main menu.
Determine whether each equation is a linear equation. Write yes or no. If yes, write the equation in standard form. Only 6 are NO. 1. 2x = 4y. 2. 6 + y = 8. 3. 4x ...
C 28. B 27. D 20. 2. A rainwater collection tank contained 40 inches of water. After 4 days ... A cable company charges $35 to begin service and $20 per month.
In Theorem 1 we extend the domain of Equation 1 to the real line. ... We use this transform to extend the domain of Equation 2 to the two-dimensional plane.
Connect more apps... Try one of the apps below to open or edit this item. Linear Equations Thinking Map.pdf. Linear Equations Thinking Map.pdf. Open. Extract.
devsamajcollege.blogspot.in Sanjay Gupta, Dev Samaj College For Women, Ferozepur City. Page 3 of 20. Linear Differential Equations With Constant Coefficients_Exercise 5.4.pdf. Linear Differential Equations With Constant Coefficients_Exercise 5.4.pdf.
Solution of Linear Systems. Solving linear systems may very well be the foremost assignment of numerical analysis. Much of applied numerical mathematics reduces to a set of equations, or linear system: Ax b. (1) with the matrix A and vector b given,
devsamajcollege.blogspot.in Sanjay Gupta, Dev Samaj College For Women, Ferozepur City. Page 3 of 17. Linear Differential Equations With Constant Coefficients_Exercise 5.5.pdf. Linear Differential Equations With Constant Coefficients_Exercise 5.5.pdf.
The number of boys in the Sports Club is four fifths the number of girls. If there are 360 boys and girls altogether in the club, how many girls are there in the club? 8. Michaela's age is ten years greater than half Jake's age. If the sum of their a
Online PDF Differential Equations and Linear. Algebra For Pc/Ipad. Book detail. Title : Online PDF Differential Equations and Linear q. Algebra For Pc/Ipad isbn : 0980232791 q. Relatet. Introduction to Linear Algebra ... Introduction to Applied Mathe
