A*A*C*2= 4.2 * 4.2 * 3 * 2=105.84
A*B*C*2/2= 4.2 * 5.7 * 3 * 2 / 2= 71.82 add those 2 values to get
177.66 so A
About $0.37 because you divide $4.49 by 12
Answer:
-55/78 OR. -0.7
Step-by-step explanation:
Answer:
(7w + 9x)(7w - 9x)
Step-by-step explanation:
Given expression;
49w² - 81x²
Now to solve the problem;
49w² - 81x² = 7²w² - 9²x²
Using differences of two squares;
x² - y² = (x + y)(x - y)
So;
7²w² - 9²x² = (7w + 9x)(7w - 9x)
