Answer:
The ratio of the small sphere’s area to that of the big one is 25:64
Step-by-step explanation:
The area of a sphere can be calculated using the formula:
A = 4 π r^2
Now, since their radii are if the ratio 5:8, we can say that the radius of the small sphere is 5 while that of the big sphere is 8
For the small sphere, the value of the area will be 4 * π * 5^2 = 100 π unit
For the big sphere, the value of the area will be 4 * π * 8^2 = 256 π unit
The ratio of the smaller sphere to the larger sphere is;
100 π : 256 π
Divide through by 4
25: 64
Answer:
The length of BC is 17
Step-by-step explanation:
When we construct a triangle with the data, we will end up a isosceles triangle.
In a isosceles triangle , we know that tow angles and two sides are equal
The questions states that

Then sides AC and AB are also equal
On equation their values
2X - 8 = X+9
2X = X + 9 +8
2X = X + 17
2X - X = 17
X = 17
The length of BC = X = 17
8 + 15 = 23
23 - 65.45 = 42.46.
The rest of the people in the group split $42 and 46 cents.
Hope this helped!!