Answer:
(8b + 12) + (3n+6) + (9b - 4)
= 8b + 12 + 3n + 6 + 9b - 4
= 17b + 3n + 14
Answer:
31
Step-by-step explanation:
45 + (-14)
45 - 14
=31
+ x - = -
5)7÷0.002 = 35006)0.718÷0.2 = 3.59
7)0.0141÷0.003 = 4.7
8)0.24÷0.012 =20
9)1.625÷0.0013 = 1250
10)47.1÷0.15 =314
Answer:
16
Step-by-step explanation:
ez boi V = Bh V=16
Answer:
101.1%
Step-by-step explanation:
The two batteries are in the shape of cylinder.
The total surface area of a cylinder
SA = (2πr^2 + 2πrh ) =
For AAA battery
h = 0.8mm
r = 1.9 mm
SA = (2π(1.9)^2 + 2π × 1.9 × 0.8 )
SA = 22.68 + 9.55
SA = 32.23 mm^2
For AA battery
h = 1 mm
r = 2.75 mm
SA = (2π(2.75)^2 + 2π×2.75× 1 )
SA = 47.52 + 17.28
SA = 64.80 mm^2
Increase in SA = 64.80 - 32.23
Increase in SA = 32.57
% increase = increase in SA/AAA × 100
% increase in SA = 32.57/32.23 × 100
% increase in SA = 101.1%