2,6,15,31,......
6-2=4=2X2
15-6=9=3X3
31-15=16=4X4
So the next number should be 31+5X5=56
hope this helps :)
The surface area of a sphere is π x 4 x radius²
so let the radius be r
π x 4 x r² = 2122.64
r = 13 inches
Step-by-step explanation:
Number of choices = 5C2 = 5 * 4 / (1 * 2) = 10.
Answer:
• let's first get the percentage decrease:
• then multiply the percentage decrease with the mass given: