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Mathematics, 10.06.2021 21:50 johnathan1104
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Keisha's teacher gives her the following information:
• m, n,p, and q are all integers and p= 0 and q=0
•A= m/q and B= n/p
What conclusion can Keisha make?
A: A +B = mp+nq/PQ, so the sum of a rational number and an irrational number is an irrational number.
B: A•B= mp+nq/PQ, so the product of two irrational numbers is an irrational number.
C: A+B= mp + nq/PQ, so the sum of two rational numbers is a rational number.
D: A•B= mp + nq/PQ, so the product of two rational numbers is a rational number.​
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Mathematics, 22.06.2019 02:00
1. the manager of collins import autos believes the number of cars sold in a day (q) depends on two factors: (1) the number of hours the dealership is open (h) and (2) the number of salespersons working that day (s). after collecting data for two months (53 days), the manager estimates the following log-linear model: q 4 equation 1 a. explain, how to transform the log-linear model into linear form that can be estimated using multiple regression analysis. the computer output for the multiple regression analysis is shown below: q4 table b. how do you interpret coefficients b and c? if the dealership increases the number of salespersons by 20%, what will be the percentage increase in daily sales? c. test the overall model for statistical significance at the 5% significance level. d. what percent of the total variation in daily auto sales is explained by this equation? what could you suggest to increase this percentage? e. test the intercept for statistical significance at the 5% level of significance. if h and s both equal 0, are sales expected to be 0? explain why or why not? f. test the estimated coefficient b for statistical significance. if the dealership decreases its hours of operation by 10%, what is the expected impact on daily sales?
Answers: 2
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Mathematics, 22.06.2019 03:30
In 2000 the average price of a football ticket was $48.28. during the next 4 years, the proce increased an average of 6% each year.a) write a model giving the average price (p), in dollars, of a ticket (t) in years after 2000.b) graph the model. estimate the year when the average ticket price was about $60
Answers: 1
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