23Which equation represents the following sentence?A number is equal to the product of seven and another number, decreased by fourteen.A. y- 14 = 7xВ.y = 7x - 14Oc. y+ 7x = 14D. y = 7(x - 14)

Given: A number is equal to product of 7 A number is decreased by 14

Answered: Which equation represents the following…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Each term (3 months) the current group of economics students completed a questionnaire as to how much they would spend on new purchases compared to how much they would save/pay off bills, if they suddenly and unexpectedly received a check for $1,000. The average MPC is shown in the table below. Month in which student poll was taken Average of students’ responses as MPC March 0.41 June 0.30 September 0.22 December 0.56 What do these MPC’s imply about the students’ thinking over the course of the year? (Enter response here.) What is likely happening in the economy during the same period of time?
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This is how I interpret the question units of slope: distance/time?asap
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Variable Y 18 A A B 6 6 9 12 15 18 Variable X 15 12 6 3 O 3 لیا Refer to the provided graph. The slope of the line tangent to the curve at point B is
For the following observations, a scatter diagram is plotted. What kind of relationship (if any) does it exist between x and y? 16 14 12 10 8 6 4 2 0 0 Scatter diagram 6 8 No relationship exists between x and y. A positive relationship exists between x and y. A negative relationship exists between x and y. O none of the rest of statements is correct. 10
y 0 A only A and D only A, B, and D E both C and E C D A B Refer to the diagram. Which line(s) show(s) a positive relationship between x and y? X
5. (26 points) The following two equations were estimated using a sample of births for the year 2010. The variable bwght is birth weight, in ounces, faminc is annual family income, in thousands of dollars, cigs is number of cigarettes the mother smoked per day while pregnant, motheduc is mother's education (in years), and fatheduc is father's education (in years): log (bŵght) = 4.73+ 0.146 log( faminc) - (0.03) (0.076) n=1,191 R² = 0.264 0.031 cigs (0.016) (5.1) log (bŵght) = 4.73+ 0.136 log( faminc) - (0.03) (0.076) - 0.051 cigs (0.010) 0.040 motheduc+ 0.041 fatheduc (0.030) n=1,191 R² = 0.286 (0.026) (5.2) (a) In terms of the model parameters, (i) state the null hypothesis that, after controlling for faminc, motheduc, and fatheduc, cigs has no effect on birth weight against the alternative that cigs has a negative effect; and (ii) carry out the test at the 10% significance level (4 points). (b) Controlling for cigs, is faminc individually significant at the 1% level against a two-…
The line in the graph shows a relationship between two variables, x and y. What is the slope of the curve? ... The slope of the curve is >>> If the slope is negative, use a minus sign. If the slope is positive, do not use a plus sign. 8 7 5- 4- 3- 2- 1- 0- y 0 1 2 3 4
3. Use the following joint distribution to compute E(X), E(Y), o, o, oxy, and corr(X, Y). Y=0 X=0 X=1 Total 0.15 0.07 0.22 0.78 Y=1 0.15 0.63 Total 0.30 0.70 1.00
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Which equation represents the following sentence? A number is equal to the product of seven and another number, decreased by fourteen. O A. y- 14 = 7x B. y = 7x - 14 C. y+ 7x = 14 OD. y = 7(x - 14)