The radius of the sphere decreases at the rate of 6 m/ sec
That is, 
Surface Area of the sphere of radius r is given by 
Differentiating with respect to t,


I don’t know it the last number is 8500 but I got 8404 it’s that
Answer:
y=9 and x=18
Step-by-step explanation:
You know that y+3=12 so 12-3=9
You know that x-3=15 so 15+3=18
Answer:
B. Data analysis
Step-by-step explanation:
Data analysis is a process of inspecting, cleansing and organizing , transforming and modeling data with the goal of discovering useful information, informing conclusion and supporting decision-making.
What is a Data?
Data are information, usually numerical, that are collected through observation, data is a set of values of qualitative or quantitative variables about one or more persons or objects.
Examples of data types are
1. Qualitative
2. Quantitative
3. Attribute
4. Discrete
5. Continuous Data