Step-by-step explanation:
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= (a - b)(a + b)
= a.a + b.a - b.a - b.b
= a² + ba - ba - b²
= a² - b²
I dont think the answer is always. Because integers are always whole numbers. Hope that helps a little?
The two events are independent of each other.
According to the question during a game of roulette, a wheel is spun and a ball drops randomly into one of the wheel's numbered compartments. The ball can drop in any one of the wheel's numbered compartments , there is no restriction on it.
Now, the process is repeated with another random spin. when the process is repeated the ball can drop in any one of the wheel's numbered compartments , there is no restriction on it. As the first spin does not affect the second spin, we can conclude that these two events are completely independent of each other.
To know more about independent events refer to the link:
brainly.com/question/1374659
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The answer would be 72.8 grams
Simply 5. Absolute value is most commonly used to show that even though what is in the brackets is negative [-7] the actual value for practical purposes needed is positive 7.
