Answer:
Step-by-step explanation:
a)area A=pi r^2
rate of change of area =dA/dt =2 pi r dr/dt
given dr/dt =25 ,r =50
rate of change of area =dA/dt =2 pi *50 *25 =2500pi=7854
area growing 7854 cm2/s
b)area A=pi r^2
rate of change of area =dA/dt =2 pi r dr/dt
given dr/dt =25 ,A =64
pi r^2 =64
=>r =8/√pi
rate of change of area =dA/dt =2 pi *(8/√pi) *25 =400√pi=708.98
area growing 708.98 cm2/s
Answer:
Relate the points down below to yourself and give examples
Step-by-step explanation:
You show confidence and leadership
Being yourself/unique
You speak and interact kindly with everyone
You show respect and concern for others
You give advice to those who need it
You have humility and a willingness to admit mistakes.
You do good things outside of school
Problem: Maria baked 50 cupcakes for a bake sale, 29 of the cupcakes were sold, then she baked more cupcakes and then sold 52 and had two leftover cupcakes. How many cupcakes did she bake the second time?
Solution: 50 - 29 + a - 52 = 2
50 - 29 =21...(and etc.)
Hope this helps! :)
Answer:
im not going to guess it is C
Step-by-step explanation:
