Answer: 
Step-by-step explanation:
- A coin has 2 sides. Which means the probability of the coin landing on one side will be
.
- Since there are three coins, we multiply
three times (
*
*
) to get the answer of 
First: 13 x 8 = 104
Second: 8/2 = 4
Third: 104 + 4 = 108
Your answer is 108
3+6-7=2
2x5/2=5(1)
6x5/2=15(2)
The area shaded: (1)+(2) => 5+15=20
Answer: 20
Answer:
(2, -1)
Step-by-step explanation:
The lines intersect at (2,-1), I graphed out the equations
The vertex of the parabola is given by :

.
So,

is the first coordinate of the vertex, which means it is also the point where the line of symmetry passes.
The line of symmetry divides the parabola into 2 symmetrical parts: the x-intercepts are also symmetrical to each other with respect to this line.
So, if one of the x-intercepts is

, that is 3 units to the right of the x-intercept, the other must be 3 units to the left. Thus, the second x-intercept is :
Answer:

,