8*8 = 64
9*9 = 81
so integer part of sqrt 70 is 8 Answer
Surface Area of a Sphere = 4π(d/2)²
Let the smaller sphere's diameter be just a sample of 4 units in diameter and let the large spheres diameter be 4 times that of the smaller sphere.
Small Sphere: 4π(4/2)² = 16π units²
Large Sphere: 4π(16/2)² = 256π units²
256π / 16π = 16 times
The large sphere has a surface area 16 times that of the smaller one.
Answer:
<h2>D</h2>
The cube of twice a number decreased by 11
It is A because the sum of E is 0+5=5 which is greater than 4 and X is 5+0=5 which is greater than four
1 kilometer = 1000 meters
5000 meters / 1000 = 5 kilometers
5 kilometers x 2 times per day = 10 kilometers per day.
answer: D) 10 kilometers
