The accompanying table shows a portion of data consisting of the selling price, the age, and the mileage for 20 used sedans. selling price agemiles 6 61,472 5 54,380 13,632 13,793 11,923 8 42,364 click here for the excel data file a. determine the sample regression equation that enables us to predict the price of a sedan on the basis of its age and mileage. (negative values should be indicated by a minus sign. round your answers to 2 decimal places.) [if you are using r to obtain the output, then first enter the following command at the prompt: options(scipen-10). this will ensure that the output is not in scientific notation. price- +age + miles b. interpret the slope coefficient of age. the slope coefficient of age is-51716, which suggests that for every additional year of age, the predicted price of car decreases by $517.16 othe slope coefficient of age is -0.07, which suggests that for every additional year of age, the predicted price of car decreases by $0.07 the slope coefficient of age is -51716, which suggests that for every additional year of age, the predicted price of car decreases by $517.16, holding number of miles constant the slope coefficient of age is-007, which suggests that for every additional year of age, the predicted price of car decreases by $0.07, holding number of miles constant c. predict the selling price of a eight-year-old sedan with 67,000 miles. (round coefficient estimates to at least 4 decimal places and final answer to 2 decimal places.) pr ice = $

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours

it would be 4 over -2 divided by -1 over 3.

if you want a solution it would be 4

you flip it so it would be 4/-2 divided by 3/-1 then it would be 12/3 and you would simplify it to 4

here is me explaining it:

the pizza would be delivered around 5, give or take 15 minutes. this means it could be delivered anywhere from 4: 45 to 5: 15

let's say 5: 00 is equivalent to 0 on a number line and x represents time. 4: 45 would be equal to -15x because we are 15 minutes behind our starting point, 5: 00. 5: 15 would be equal to 15x because we are 15 minutes ahead of your starting point (which means you're late on the pizza delivery! )

absolute value is very confusing. the basic definition is how far you are from your starting point. if we deliver the pizza at 4: 45 (15 minutes before the starting point) we would be -15. this means we are 15 away from our starting point, 5: 00. that's the absolute value. |-15| (absolute value of negative fifteen) is equal to 15. if you did not understand this i suggest rereading this paragraph.

the normal way you would write this scenario would be 4.75 (4 and 3 quarters, or 4: 45. you can also write as a fraction.) is less than x and x is less than 5.25 (5 and 1 quarter or 5: 15). 4.75< x< 5.25 the reason why i am using numbers is because you cannot represent typical time as values on a graph, number line, or in an equation.

another way to write this scenario is with absolute value. we can write this as |x| being less than or equal to .25 (remember, this just means 15 minutes).           |x| ≤ .25.

sorry if the end was confusing. because we are talking about time this whole question is 10x harder. like i said earlier, you cannot represent time as, well, time, in a graph, equation, or number line. i set the values as follows: 1/4 or .25 for 15 minutes, and 1 for 1 hour. this is just a common way to set up graphs involving time.

|x| ≤ .25

i hope this ! : )

tell me if you need more assistance