Answer:
It's y = (5)(0.2)^x
_____________
Step-by-step explanation:
Exponential functions have a standard form of ab^x
Where a is the starting value, and b is the exponential growth or decay.
Because the numbers are getting smaller and smaller, it is a decay so b must be less than one.
We can eliminate the first choice because when x is 1, y is 1. If this where the equation we would get (5) (1/2) ^ 1 = 5 × 1/2 = 2.5 ≠ 1.
So the answer must be the second choice.
Step-by-step explanation:
One pound = $0.65
Total cost = c
Number of pounds to ship = p
Part a:
c = 0.65p
When p = 2
c= 0.65(2)
c = $1.30
Part b:
One pound = $0.65 - $0.05 = $0.60
c= 0.6p
Answer: (a) $1.30 (b) c= 0.6p
Answer:
D y=-1/2x+4
Step-by-step explanation:
use the order parir (4,2) x=4
y=-1/2*4+4
y=-2+4
y=2
100(7/21) = ______%
And your answer is 33 and 1/3%
