ANSWER
The correct answer is B

EXPLANATION
The given exponential expression is

We can rewrite this as,

We need to simplify to obtain a positive index, so we apply the following property,

This implies that,

This will finally simplify to,

Therefore the correct answer is B
-19.2
12/(-5/8) means 12*(-8/5)
12*8=96
96/5=19.2
don’t forget the negative sign
so
-19.2
Answer:
Step-by-step explanation:
Given is an equation in x and y as

We use implicit method to differentiate the above equation
18x-2yy'=0
y' = 9x/y
b) to solve the equation explicitly for y and differentiate to get y' in terms of x. y' = ±
We separate the variables as

Take square root

Answer:
24
Step-by-step explanation: