Hi there!
Combining th' like terms of the expressions.
(7y² - 3y) + (8y² - 8y)
7y² - 3y + 8y² - 8y
(7y² + 8y²) + (-3y - 8y)
15y² - 11y
Hence,
Option [ 1. ] - 15y² - 11y is Correct
~ Hope it helps!
17 is in the thousandths place, so we write it as a fraction over 1000.
17/1000
So we have:
46 17/1000
The answer is 9.0 because 8.5 is above 5 and to the nearest tenth it would be 9.0
The standard deviation of the set is 5.2
To find standard deviation, we take the square root of the variance.