Answer:
When you add variables with exponents, you do not add the exponents together.
The error -> 
In this case, they have added the exponent 
.
However, you do not add it. Instead, the answer should be 
Answer:
a. The given equation is d = -75·t + 275 is a function
b. f(t) = -75·t + 275
c. 275 km
d. The situation does not makes sense for t > 11/2 hours.
Step-by-step explanation:
a. Given that a relation is a functional relation if for each input of a member in the relation, there is only one output for the other member, therefore;
The given equation is d = -75·t + 275 is a function
As when t = 1, d = 200 km
b. The equation written in functional notation, f(t) is f(t) = -75·t + 275
c. At the start of the journey, t = 0
Therefore;
f(0) = -75×0 + 275 = 275 km
d. The values of t that do no make sense in the function are given as follows
0 = -75×t + 275
t = 275/75 = 11/3 = 3.67 hours
For times above 3.67, the distance becomes negative
Therefore, the situation does not makes sense for t > 11/2 hours.
4 quarts = 1 gallon
2 pints = 1 quart —> 8 pints = 4 quarts
2 cups = 1 pint —> 16 cups = 8 pints
Therefore 16 cups are in a gallon
Answer: 3 books in 4.5 weeks
Step-by-step explanation:
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