Surface area of cylinder = 2πrh + 2πr^2
SA for cylinder A = 2π x 2 x 2 + 2π x (2)^2 = 8π + 8π = 16π
SA for cylinder B = 2π x 2 x 4 + 2π x (2)^2 = 16π + 8π = 24π
The first given equation is:
4x + 3y = 6
which can be rewritten as:
2(2x) + 3y = 6 .............> equation I
The second given equation is:
2x + 2y = 5
which can be rewritten as:
2x = 5 - 2y ........> equation II
Substitute with equation II in equation I to get the value of y as follows:
2(5-2y) + 3y = 6
10 - 4y + 3y = 6
-y = 6-10 = -4
y = 4
Substitute with the y in equation II to get x as follows:
2x = 5 - 2y
2x = 5 - 2(4)
2x = 5 - 8 = -3
x = -3/2
From the above calculations:
x = -3/2
y = 4
Recognize that both 144 and 256 are perfect squares; their sqrts are 12 and 16 respectively. Therefore,
144 12 3
sqrt{ ------ } = ----- = ----
256 16 4
Actually, there are negative roots as well as positive ones here; so (for example) write -12/16 as well as +12/16.
X = [14 -13]
It wants you to solve x + b = c for the first set (b=8, c=22) then solve it for the second set (b =4, c = -9). Then you put those answers in the same places that those numbers were
Answer:
see below
Step-by-step explanation:
m = -4/5
Parallel slopes are the same so
m parallel = -4/5
Perpendicular slopes are the negative reciprocal
- ( 1/ ( -4/5))
+ 5/4
m perpendicular = 5/4