Answer:
1. y = 10(1/3)^x
2. 24.8 bacteria per minute
Step-by-step explanation:
1.
When you raise a number between 0 and 1 to a positive exponent, the result is less than 1, so it indicates exponential decay.
The only such function in the choices is
Answer: y = 10(1/3)^x
2.
b(t) = 4(2)^t
b(0) = 4(2)^0 = 4
b(5) = 4(2)^5 = 128
average rate of change = (128 - 4)/(5 - 0) = 124/5 = 24.8
Answer: 24.8 bacteria per minute
The surface area of a sphere that is 8 inches is 201.06in²
Step-by-step explanation:1x-5y=10 13x-7y=2 ---------- The addition method is the elimination method. ... the better and the simplest way is to multiply first equation by 7 and the second equation by 5. ... You will get then an equation for "y" only, and you should solve it to get y. ...
(3/5)*y-(7/(-6)) = 24 // - 24
(3/5)*y-(7/(-6))-24 = 0
(3/5)*y+7/6-24 = 0
3/5*y-137/6 = 0 // + 137/6
3/5*y = 137/6 // : 3/5
y = 137/6/3/5
y = 685/18
y = 685/18
