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MAT117
Quiz 4 - Applications
Chapter 11
10 problems – 5 points each
50 points possible

Solve all problems and attach your solutions document in your Assignment Section Remember to use Equation Editor or MathType when appropriate. Remember to check your steps carefully. Please use the rightmost column to show your steps.

CorrectSolution?| Appropriate Steps Shown?| Credit Earned per Problem| Y| Y| Full Credit|
Y| N| Partial Credit|
N| Y| Partial Credit|
N| N| No Credit|

Grading(Please Leave Blank)| | Concepts and Skills:Show all steps when appropriate.| | 1.| If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?The solutions of the graph of a quadratic equation are the x-coordinates of the points where the graph crosses or touches the x-axis.| | 2.| * a) Without graphing, how do you know if a parabola opens upward or downward? Give an example. y=ax2+bx+c If "a" is positive, opens upward.

If "a" is negative, opens downward. * * b) Without graphing, how do you determine the vertex of a parabola? Give an example.Use the equation -b over 2a and this will give you x. Now you plug in your answer and you have your vertex * * * | | 3.| Solve by completing the square: Solutions: x=7, x=-1| | 4.| Solve by using the quadratic formula:(x-9)(x+5)=0

x-9=0x=9
x+5=0
x=-5|
| 5.| Solve by factoring: Solutions x=-3,-1|
| | Applications: Be sure to show the equations or inequalities using variables.| | 6.| The length of a rectangle is 1 cm more than 4 times its width. If the area of the rectangle is 97 cm2, find the dimensions of the rectangle to the nearest thousandth.Let x be the width.

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MAT 540 Week 2 Quiz
Question 1
If variable costs increase, but price and fixed costs are held constant, the break even point will decrease.
Question 2
Parameters are known, constant values that are usually coefficients of variables in equations.
Question 3
Probabilistic techniques assume that no uncertainty exists in model parameters.
Question 4
In general, an increase in price increases the break even point if all costs...

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This document MAT 126 Week 1 Quiz contains solutions on these questions:
A single card is drawn from a deck. What is the probability of getting a queen or a king?
How many different three letter permutations can be formed from the letters in the word clipboard?
In a classroom, the students are 11 boys and 1 girl. If one student is selected at random, find the probability that the student is a girl....

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This document MAT 126 Week 1 Quiz contains solutions on these questions:
1. In a survey of 24 college students, it was found that 16 were taking an English class, 17 were taking a math class, and 10 were taking both English and math. How many students were taking a math class only?
2. Find the general term of the set. {8, 12, 16, 20, 24, . . .}
3. Let U = {5, 10, 15, 20, 25, 30, 35, 40}
4. Upon...

...Week 1 quizWeek 1, Quiz 1 Points Received 40/40 (100%)
1. Total cost equal the fixed cost plus the variable cost per unit divided by volume
• True
• False
2. Objective probabilities that can be stated prior to the occurrence of an event are
• Subjective
• A priori
• Classical or a priori
• None of the above
3. An experiment is an activity that results...

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This document MAT 126 Week 1 Quiz contains solutions on these questions:
Classify the angle as acute, right, obtuse, or straight.
Find the perimeter.
Identify angles 6 and 7 as alternate interior, alternate exterior, corresponding, or vertical.
Find the domain and range of the relation, and state whether or not the relation is a function. {(7, 2), (8, 2), (9, 2), (10, 2)}...

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Ashford MAT 222 WEEK 1 TO 5
Week 1, Assignment, Solving Proportions
Read the following instructions in order to complete this assignment:
1. Solve problem 56 on page 437 of Elementary and Intermediate Algebra. Set up the two ratios and write your equation choosing an appropriate variable for the bear population.
2. Complete problem 10 on page 444 of Elementary and Intermediate Algebra. Show all steps in solving the...

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MAT117 /MAT117 Course Algebra 1B
Weeks 1 – 9 All Discussion Questions
Week 1 DQ 1 1. What four steps should be used in evaluating expressions? 2. Can these steps be skipped or rearranged? Explain your answers.3. Provide an expression for your classmates to evaluate.
Week 1 DQ 21. Do you always use the property of distribution when multiplying monomials and polynomials? Explain why or why not. 2. In what...

...MAT 540 Quiz 4
1.___________is maximized in the objective function by subtracting cost from revenue
Profit
Revenue
Cost
Productivity
2. In a media selection problem, instead of having an objective of maximizing profit or minimizing cost, generally the objective is to maximize the audience exposure
True
False
3. Media selection is an important decision that advertisers have to make. In most media selection decisions, the objective of the decision maker is to...