Answer:
2n-8
Step-by-step explanation:
twice n is 2n. decreased by 8 is the -8
45. divide the first set of x and y by 2 then multiply by 9 to get 45 for y and 18 for x
Answer:
a) 30m
b) 50.6m²
Step-by-step explanation:
Perimeter = 2(length + width)
= 2(9.96 + 5.08)
= 30.08 m
Area = length × width
9.96 × 5.08
50.5968 m²
Answer:
See below.
Step-by-step explanation:
I see there are no answer choices you've provided, but in order to interpret a confidence interval correctly, you might say something like "We are 90% confident that the true difference in the mean number of drops is contained within the interval".