A word to the wise: It's <span> f(x)=125(0.9)^x, where ^ represents exponentiation.
In this case the ave. value over the interval [11, 15] is
125(0.9)^15 - 125(0.9)^11
------------------------------------- = (125/4) [ 0.9^15 - 0.9^11)
15 - 11 = (31.25) [ 0.2059 - 0.3138 ] = a negative result
= (31.25)(-0.1079) = -3.372 (av. r. of c.
over the interval [11,15] )
Do the same thing for the time interval [1,5]. Then compare the two rates of change.</span>
The answer is B i believe
Answer:
0.72
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The total fabric that Mrs. Lin needs is equal to

Convert mixed number to an improper fraction



substitute



Convert to mixed number

It’s easy just find the slope and the answer is gonna be obvious
Slope= y2-y1/x2-x1
Slope = -2-(-1)/0-4 = -1/-4 = 1/4
Slope = 1/4x
So the answer should be C