Answer:
A' = 6(3t +1)
Step-by-step explanation:
The area is the square of the side length, so ...
A = (3t +1)²
The derivative with respect to t is then
A' = 2(3t +1)·(3) = 6(3t +1)
If you like, you can multiply out the area expression first, then differentiate.
A = 9t² +6t +1
A' = 18t +6
This can be factored, if you like, to ...
A' = 6(3t +1)
The measure of missing angle is 115°
9*2 =18 add 27 =45 this is the answer hope this helped
Answer:
20%
0.12
Step-by-step explanation:
Convert 1/5 to a percentage.
1/5 * 100% = 20%
Convert 12/100 to a decimal.
0.12
