Your answer is C) 2a² + 2b²
To find this we can just expand the brackets of (a - b)² and (a + b)², and then combine like terms:
(a - b)² = (a - b)(a - b) = a² - 2ab + b²
(a + b)² = (a + b)(a + b) = a² + 2ab + b²
Then when you combine like terms, you get (a² + a²) + (-2ab + 2ab) + (b² + b²), so the ab terms cancel out and you get left with 2a² + 2b².
I hope this helps!
156 x 21%
156 x 0.21 = 32.76 so round to 32 since you cant make 0.76 of a shot
Answer:
B. 16.4
Step-by-step explanation:
Well in 16.4 the digit 6 is the first number meaning it is 6 ones.
<em>Thus,</em>
<em>choice b is correct.</em>
<em />
<em>Hope this helps :)</em>
9514 1404 393
Answer:
B. 3x+y=4
Step-by-step explanation:
The constant on the right is positive, so the signs of the coefficients match the signs of the respective intercepts. The graph shows both x- and y-intercepts are positive, so the equation will have positive coefficients everywhere. The appropriate choice is ...
3x +y = 4