Hello,
Let's be x and y the 2 numbers
x+y=20==>y=20-x
P(x)=x*y=x*(20-x)=20x-x²
Max(P(x))==>P'(x)=0= 20-2x==>2x=20==>x=10
A product is maximum is the 2 numbers are equals;
Numbers are 10 and 10 and product=100
Answer:
The answere is 81
Step-by-step explanation:
Just had this on a test!
Answer:

Step-by-step explanation:
step 1
Find the measure of angle A
we know that
The sum of the interior angles in any triangle must be equal to 180 degrees
so

substitute the given values

step 2
Find the length side c
Applying the law of sines

substitute the given values

solve for c


Answer:
15 + 8 + 13 + 13 + 25 = 74 in^2
Step-by-step explanation: