Answer:
y= 1200(0.92)^x
Step-by-step explanation:
Given data
Cost price= $1200
Rate of decrease= 8%
Let the time be x
The expression that describes an exponential function is
y= ab^x
for decrease b= 1-r
y= 1200(1-0.08)^x
y= 1200(0.92)^x
Hence the expression is
y= 1200(0.92)^x
He answer is d which is 25
L(which is length) is equal to 42 divided by width which is 6. so the equation is L=42/6
Answer:
7/20 = x/400
Step-by-step explanation:
