Purchase Solution

Quantitative Reasoning Questions

Not what you're looking for?

Ask Custom Question

1. Evaluate the function f(x) = 9x - 6 for x=0 and x=5.

2. Bob owns a watch repair shop. He has found that the cost of operating his shop is given by C(x) = 4x2-296x+85, where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?

3. Find the slope of the line through the points ( 5, -5) and ( 6, -1)

4. Kafka Inc. imports hard drives and sells them on the internet. The profit is given by the equation P = 140n - 8500, where n is the number of hard drives sold. Graph P = 140n - 8500 for n < 1000. Estimate the profit, to the nearest ten dollars, corresponding to the sale of 875 hard drives.

5. When $ 8600 is invested in a savings account paying simple interest for the year, the interest, i in dollars, can be obtained from the equation i = 8600r , where r is the rate of interest in decimal form. Graph i = 8600r , for r up to and including a rate of 15%. If the rate is 12%, how much interest is earned?

Purchase this Solution
Solution Summary

There are five problems. Solutions to given problems depicts the steps to determine the value of function at given point, slope of a line passing through two given points and cost minimizing number of repairs. It also depicts the methodology to find the value of given functions at a desired point.

Solution Preview

Please refer attached file for missing graphs.

1. Evaluate the function f(x) = 9x - 6 for x=0 and x=5.
f(x)=9x-6
f(0)=9*0-6=3
f(5)=9*5-6=39

2. Bob owns a watch repair shop. He has found that the cost of operating his shop is given by C(x) = 4x2-296x+85 , where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?

C(x)=4x^2-296x+85
Differentiate with respect to x, we get
C'(x)=8x-296
Put C'(x)=0
8x-296=0
x=296/8=37
Let us find second derivative of C(x)
C''(x)=8
We find ...

Solution provided by:
Lokesh Jain, MSc
Education
  • BEng (Hons) , Birla Institute of Technology and Science, India
  • MSc (Hons) , Birla Institute of Technology and Science, India
Recent Feedback
  • "Thank you"
  • "Really great step by step solution"
  • "I had tried another service before Brain Mass and they pale in comparison. This was perfect."
  • "Thanks Again! This is totally a great service!"
  • "Thank you so much for your help!"
Purchase this Solution
Free BrainMass Quizzes
Operations Management

This quiz tests a student's knowledge about Operations Management

Transformational Leadership

This quiz covers the topic of transformational leadership. Specifically, this quiz covers the theories proposed by James MacGregor Burns and Bernard Bass. Students familiar with transformational leadership should easily be able to answer the questions detailed below.

Balance Sheet

The Fundamental Classified Balance Sheet. What to know to make it easy.

SWOT

This quiz will test your understanding of the SWOT analysis, including terms, concepts, uses, advantages, and process.

Business Processes

This quiz is intended to help business students better understand business processes, including those related to manufacturing and marketing. The questions focus on terms used to describe business processes and marketing activities.

View More Free Quizzes
Related BrainMass Solutions

  • Questions on Research Methods

    Quantitative research uses NOTE: quantitative AND qualitative research can use both kinds of reasoning!!! A. Inductive reasoning Inductive reasoning uses the data to generate ideas. B.

  • Quantitative Methods/Survey Design Research

    There are two basic types of reasoning in research which are inductive and deductive reasoning.

  • Research Questions

    270179 Research Questions and Hypotheses How do research questions frame studies? What type of wording would lead to a qualitative study? A quantitative one?

  • Description of Philosophy

    Reference: http://www.answers.com/topic/philosophy When empirical methods are not employed reasoning tends to be qualitative, rather than quantitative in nature. Reasoning involves argumentation and questioning on a variety of subjects.

  • What inductive and deductive reasoning questions could be applied to evaluate forecasted demand?

    104732 Questions could be applied to evaluate forecasted demand What inductive and deductive reasoning questions could be applied to evaluate forecasted demand?

  • Business Management and Self-Reflection

    The Quantitative Reasoning is also an indispensable subject of the present era. // As we know that the Quantitative Reasoning is one of the core courses of MBA, Engineering and Research work.

  • Quantitative Reasoning - Functions and Equations

    227719 Quantitative Reasoning - Functions and Equations Please review and answer the questions below.. 1. Suppose you have a lemonade stand, and when you charge $2 per cup of lemonade you sell 120 cups.

  • Balanced Books Bookkeeping Case

    Quantitative reasoning for business and business math calculations are examined.

  • Challenges of Mixed Methods Research Designs

    The reasoning behind this, is the fact that qualitative research methodology may be utilized to ascertain the reasons behind individual choices, and quantitative methodologies may be utilized in order to gain an exact statistical bearing on the effects

  • The differences in qualitative and quantitative

    This single objective reality emerges through deductive reasoning following the cause and effect process of quantitative research.

View More Related Solutions