Answer: 16y² - x²
Step-by-step explanation: The - sign means a difference, so the choices with + signs are eliminated (though 64x² and 9 are squares)
10 is not a square so that one is eliminated (though the y² and the 4x² are squares)
16 is the square of 4, y² is the square of y, and x² is the square. That expression shows a difference of squares.
Answer:
, or in this case, 
Step-by-step explanation:
Assuming that Justine's score is represented by 
and Meagan's score is represented by 
, we know that will always be the opposite of .
To represent opposite, we put a negative sign before the variable.
This makes the current number, even if it's negative, the opposite value.
Let's test it out.
Since Justine's score is -7, substituting it into the equation makes it . We know that two negatives make a positive, so 
.
Now let's assume Justine's score is 7. Plugging it into the equation, we get 
. That's the same thing as 
, and -1 times 7 is -7.
Hope this helped!
Answer:
D
Step-by-step explanation:
The quotient rule is
d(u/v) = (u dv - v du) / u2
d(u/v) can written as
d( u (1/v) )
Using the product rule and chain rule
d( u (1/v)) = u d(1/v) + (1/v) du
= u (-1/v2) dv + (!/v) du
= (u dv - v du) / u2
