68-40=28
28/4=7
therefore, 7 is your answer
(Hope it helps my friend ^_^)
Given:
A line passes through (1,-2) and is perpendicular to
.
To find:
The equation of that line.
Solution:
We have, equation of perpendicular line.

Slope of this line is



Product of slope of two perpendicular lines is -1.



Now, slope of required line is
and it passes through (1,-2). So, the equation of line is

where, m is slope.





Therefore, the equation of required line is
.
Answer:
y = −2x+14
plot the points on a graph, and find the slope :)
Answer:
$4.80.
Step-by-step explanation:
hope this helps
V =

r^2h/3
V = 3.14 x 4^2 x 6/3 (remember r is 1/2 of the diameter)
V = 3.14 x 16 x 2
V = 100.5