Answer:
Step-by-step explanation:hhhj
Answer:
Find the area of the semi circle with Diameter of 4
2π
6.3
Step-by-step explanation:
The area formula for semicircle is (πr^2)/2.
r=2 because radius is half of diameter.
(π(2)^2)/2, 2 squared= 4 and half of it is 2. = 2π
2π would round to the nearest tenths is 6.3.
Answer:
38
Step-by-step explanation:
38
Answer:
Option b.
Step-by-step explanation:
We can easily solve this problem by using a graphing calculator or plotting tool.
The function is
h(t) = cos (t +1)
Please, see attached picture below.
By looking at the picture, we can tell that the amplitude is equal to 1
The function has a period of T = 2π
We can see there is no vertical shift.
It has a phase shift of +1. (Which moves the graph to the left)
Answer:
Option b.
To determine the number of gallons of gasoline that is used, we need to know the rate of usage of gasoline. This rate would describe the number of gasoline in units of volume that is being used per distance in units of length. In this case, we need the rate in units of miles per gallon. From what is asked and the given values, we simply divide the rate to the the total distance that was traveled by the car. We calculate as follows:
Gallons of gasoline = 293 miles / 57 miles / gallon
Gallons of gasoline = 5.14 gallons
Therefore, about 5 gallons of gasoline was consumed by the hybrid car for a distance of 57 miles.
