Solve for g S= 1/2 gt^2
1 answer:
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Answer:
Step-by-step explanation:
a. This is a decay function, since the final value (A) gets smaller and smaller as the days pass by.
b. The bacteria is decreasing by 75% per day exponentially.
c. In order to calculate the amount of bacteria in a week we simply substitute the variable t for 7 (7 days in a week) and solve for A
A = 200(0.75)^7
A = 26.7 bacteria after 1 week
d. In order to calculate this we need to substitute the variable A with 100 and solve for t
100 = 200(0.75)^t ... divide both side by 200
0.5 = 0.75^t
= t
2.4 = t
It will be half the initial amount after 2.4 days.
Answer:
D) As the gas mileage increases, the cost of driving a fixed distance increases.
Step-by-step explanation:
Hello!
Given the variables
X₁: Gas mileage of a car
X₂: Cost of driving 500 miles
Normally the variable that changes more is the gas mileage of the car, depending on the type of the car or the age of different cars from the same model and brand, the amount of gas used to cover a fixed distance varies.
From a logical point of view you'd expect that the more gas the car consumes, the more it will cost to drive a fixed distance. So the correct option is D)
Options:
A) As the gas mileage increases, the cost of driving a fixed distance decreases.
B) As the cost of driving a fixed distance increases, the gas mileage decreases.
C) As the cost of driving a fixed distance decreases, the gas mileage increases.
D) As the gas mileage increases, the cost of driving a fixed distance increases.
I hope this helps!
