Answer:
The values for the given function f is defined by
is
a)
,
b)
and
c) 
Step-by-step explanation:
Given that the function f is defined by
Now to find the value of f(0), f(18) and f(-18)
Now take f(0)
Put x=0 in the given function
we get

Therefore 
Put x=18 in the given function
we get

Therefore 
Put x=-18 in the given function
we get

Therefore 
The values for the given function f is
a)
,
b)
and
c) 
1 km = 0.621 mile;
5 km = 0.621 * 5 = 3.105 miles;
31 : 3.105 = 9.9838969 ≈ 9.98 minutes
Answer: C ) 9.98 minutes
Answer:
Miles in 10 gallons = 195
Miles in 1 gallon = 195/10 = <u>1</u><u>9</u><u>.</u><u>5</u>
Miles in 18 gallons = 19.5 × 18 = <u>3</u><u>5</u><u>1</u><u> </u><u>miles</u><u>.</u>
It is -7.83 because you distribute the -6 to the n and the 1 inside the parentheses which makes you get -6n-5=42. Since 5 is negative you add it to -5 and the 42 on the other side of the equation which turns out to -6n=47. You then divide -6 on both sides of the equation. -6n divided by -6 cancels out so 47 divided by -6 equals -7.83333333 which rounds to -7.8