Answer:
The ten millions place
Step-by-step explanation:
because the three after it is the unit million then the 8 being before the 3 would definitely be it's tens
Answer:
x - 2 = y OR f(x) = x - 2
remember: f(x) = y
Step-by-step explanation:
Is it 2x +7= -3? If so the answer is -5
C.
-3 squared is 9. 9 + (-3) is 6.
Therefore, it's C
Answer:
i) pi×4500 cm³
ii) pi×600 cm²
iii) 14 liters
Step-by-step explanation:
in general : the diameter is 30 cm, the radius is half of that (15 cm)
i)
the volume of a cylinder is base area times height.
Vc = pi×r²×h = pi×15²×20 = pi×225×20 = pi×4500 cm³
ii)
similar to volume, the side "mantle" area of the cylinder is the circumference of the base area times height.
surface area of the cylinder mantle is
Scm = 2×pi×r×h = 2×pi×15×20 = pi×30×20 = pi×600 cm²
iii)
for this we need now to do the multiplication with pi and then convert the cm³ to liters.
1 liter = a cube of 10 cm side length = 10×10×10 = 1000 cm³
pi×4500 = 14137.17 cm³ = 14.13717 liters or rounded 14 liters
