Answer:
1. D
Step-by-step explanation:
A) 20.6 x 11.4 : 21 x 11 = 252
6.9 x 3.6 : 7 x 4 = 28
252/28 = 9
b) Each number has been multiplied by 10 so for 4 numbers 9 x 10000 = 90000
If the question is, "What is the scale factor." That would be a scale (factor) of 2.
The derivative is -6sin(3x)
Answer:

Step-by-step explanation:


(Must make both denominators same number, which would be 12)

(Multiply both the numerator and denominator of by 3 and/or 4 for the specific fraction)

(Subtract the fractions)

That's how you get your answer!