Considering the diagram. 
is shown to be acute, so 
.
Angles in a triangle add to 180°, so 
.
Using the law of cosines,
Answer:
the price would be $3.93
Step-by-step explanation:
18%of 3.33 is .6 so just add that to the original amount
Answer:
i think the second answer??
Step-by-step explanation:
Multiply the first equation by -1 and add it to the second one, getting
y-4z=-10
Multiply the first equation by 2 and add it to the third one, getting -2y+10z=26
As you can see, we eliminated x and turned it into two equations with 2 variables.
Multiply the first new equation by 2 and add it to the second one to get
2z=6 and z=3. Substitute it in to -2y+10z=26 to get y=2 and substitute it into <span>-x+y+z=4 to get x=1</span>
A fraction with a denominator of 4 to represent a distance that is less than 7/12 miles is 1/4
