Answer:
n = 13
Step-by-step explanation:
374 = 11(2n+8)
Expand the right side
374 = 11* 2n + 11 * 8
374 = 22n + 88
Subtract 88 from both sides
374 - 88 = 22n
286 = 22n
divide both sides by 22
n = 13
Answer:
where are the answer choices
Step-by-step explanation:
40 minutes is not a full hour so you need to convert this to hours
40 minutes / 60 minutes = 2/3 of an hour
So a car driving at the rate of 34 2/3 mph will go
34 2/3 * 2/3 = Miles in 40 minutes
40 * (4/9) = ?or
160/9 = ? or
17 7/9 Miles
Answer:
83/24
Step-by-step explanation:
Calculator.
Answer: c) About 16% of the variation in value of the car is explained by a linear relationship with the age of the car.
e) The correlation coefficient, r, is 0.397.
Step-by-step explanation:
Given that:
Coefficient of determination (r²) between two variables, age of car (x) and value of car (y) = 0.158
Correlation of determination (r²) of 0.158 = (0.158 × 100% = 15.8% of the variation between the two variables can be explained by the regression line). Hence, about 16% of the variation between age and value of car can be explained by the linear relationship.
Coefficient of correlation (r) = sqrt(r²) = sqrt(0.158) = 0.397
