Answer:
i cant see the question
Step-by-step explanation:
Surface area = 4* pi * radius squared
radius is half the diameter
4 *3.14 * 2^2 = 50.27
Answer:
(a)
Step-by-step explanation:
using the following
The sum of the 3 angles in a triangle = 180°
The sum of the angles on a straight angle = 180°
To find x subtract the sum of the 2 given angles in the triangle from 180
x = 180 - (56 + 38) = 180 - 94 = 86 ( sum of angles in a triangle )
To find z, subtract x from 180
z = 180 - 86 = 94 ( angles on a straight angle )
To find y subtract the sum of the 2 angles from 180
y = 180 - (94 + 19) = 180 - 113 = 67
x = 86, y = 67 and z = 94
From -co to 0, the derivative is y=-2x and its domain is (-co,4]. Then y=-(x-2)/2 + 6 from (4,co)