Answer:
I prefer to express solutions to inequalities using interval notation. Both formats are are important but I think interval notation is easier to understand and represents better the solutions.
For example, if you have the following inequation:
x-2> 1
x>3
Therefore, the solution could be written either x>3 OR (3, +inf). But what happens if the solution to the system of equation is x>3 or x<-3? The solution can be easily written as: (-inf, -3) U (3, inf) instead of 'x>3 or x<-3' which can be confusing.
Answer:
s= 65
Step-by-step explanation:
The given quation s = 20h + 10
h= number of hours
Where h= 2.75 hours
If we substitute h into given model equation, we have
s = 20(2.75)+ 10
s=55 +10
s= 65
Hence, her score is 65
Answer:
y= 8(x-5)² + 6
Step-by-step explanation:
Parabolas have two equation forms, namely; the standard and vertex form.
In the vertex form, y = a(x - h)² + k, the variables h and k are the coordinates of the parabola's vertex.
In this case; a=8, h =5, and k=6
Therefore;
The vertex equation will be
y= 8(x-5)² + 6
Vertical angles
They are vertical angles because they are directly opposite each other and have equal measures.
The last one. In arithmetic sequence, the difference between the terms is constant, in this case, the difference is 3
