Answer:
See below
Step-by-step explanation:
Circle equation standard form
(x-h)^2 + ( y-k)^2 = r^2 h, k is the center
All are centered at 0,0
radii are sqrt(225) = 15 sqrt 49 = 7 and sqrt 178
The vertex is exactly in the middle of the two intersections with the x axis.
So, it's in the middle of x=3 and x=9.
What's the middle of 3 and 9? You can find this by calculating the average.
(3+9)/2 = 6
So, the vertex is at x = 6.
Answer:
The inverse matrix is used to solve the system of linear equations. It also tells us the consistent or inconsistent behaviour of the solution of equations.
Step-by-step explanation:
In real life,
- Whereas in programming which is taught at the university, matrices and inverse matrices are used for coding and encrypting messages.
- Matrices are also used in representing the real world data's like the population of people, infant mortality rate, etc.
- They are best representation methods for plotting surveys.
Answer:
26
Step-by-step explanation:
Area of a triangle is:
A = 1/2 b h
Given b = 13 and h = 4:
A = 1/2 (13 cm) (4 cm)
A = 26 cm²
-45 + 150 = 105
Carol has $105 in her account after receiving her paycheck.