Answer:
add 7 to 9 times k : 7+9k
c cubed minus the product of 5 and q plus 4 :
twice r plus 7 is equal to 45 minus r : 2r+7=45-r
Product of h and 4 is subtracted from one-fifth of x is 35 :(h*4) - 1/5*x
one third of the difference bewteen 6 and p is added to 8 : (6-p)+8
Answer:
90π units²
Step-by-step explanation:
(refer to attached)
Total Surface are off a right cylinder = area of its ends + area of curved surface
Given radius, r = 3 units and height, h = 12 units
Area of 2 ends,
= Area of 2 circles
= 2 x πr²
= 2π (3²)
= 2π (9)
=18π units²
Area of curved surface,
= 2πrh
= 2π(3)(12)
= 72π units²
Hence,
Surface area = 18π + 72π = 90π units²
