(20*30)/2 = 300
300 km is the area of the triangle
X^2+5x=2
you then solve by completing the square using the formula (b/2)^2 in order to create the new term. Solve for x by using this term to complete the square.
Your answer is then
x=-5/2+-√33/2
The number is (2√3) / 3
To find the missing number, convert what it says in words to an equation:

Divide both sides by 15:

Take the square root:
About 29%.
35 - 25 = 10, or the amount of change
10 / 35 = .285, or the amount of change over total
Answer:
Look below
Step-by-step explanation:
Let's start by converting 4 m into cm:


Since Megan's chain is only 400 cm long, Mason's chain is longer by 79 cm.