Answer:
8a+2ab-6a
Step-by-step explanation:
Open the bracket and multiply the letter a with each term in the bracket
Answer:
can you write it again???
Pobricito is your answer!!!!!!!!!!!!!
Answer:
Step-by-step explanation:make equations on : (x)+(x+5)(2x)=100
Then solve: 4x+5=100
X=23
Plug in her equation: 23+5= 28
So she is 28 years old
Part A:
Given in the statement
r(t)= 2t
A(r) = πr2
So to find A[r(t)]
You have to plug r(t) into A(r)
Answer: A[r(t)] =π(2t)2=4πt
Part B:
The statement tells you t=5 min and
π=3.14
So plug in you values
A[r(t)]=π(2(5))2=4* 3.14*5=62.8
