Answer:
$2.59
Step-by-step explanation:
.74 per pound
pounds=3.5
.74x3.5=$2.59
24 is the least common denominator
The second one is correct
The new mean age will be greater than 14.2 years because the teacher is older than the previous mean.
The two are perpendicular to each other because the two slopes are negative reciprocals
(Y2 - Y1) / (X2 - X1)
First slope:
( 1 - (-1)) / (-11 - (-6))
2/-5
Second slope:
(-13 - (-8)) / (-5 - (-3))
-5/-2 or 5/2
You know when two aliens are perpendicular when you multiply the two slopes and get -1 as the product
-2/5 X 5/2 = -1
Thus the two lines are perpendicular to each other.
