The -3-4 that should be done first
Answer:
see explanation
Step-by-step explanation:
I will begin with part two, first.
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius.
Given
x² - 18x + y² - 10y = - 6
Using the method of completing the square
add ( half the coefficient of the x/ y terms )² to both sides
x² + 2(- 9)x + 81 + y² + 2(- 5)y + 25 = - 6 + 81 + 25, that is
(x - 9)² + (y - 5)² = 100 ← in standard form
with centre = (9, 5 ) and r = 
= 10
9514 1404 393
Answer:
?° = 153°
Step-by-step explanation:
The measure of an arc is the same as the measure of the central angle it subtends. The arc is marked 153°. The central angle (?°) has that same measure.
?° = 153°
Answer:
The last one
Step-by-step explanation:
If you look at a graph, none of the line should overlap each other vertically. If a graph overlaps anywhere vertically, it is not a function.
Answer:
436.96
Step-by-step explanation:
Using the compoybd interest formula A=P(1+R÷N)^nt
A= Final amount 436.96
P= Initial Balance 420
r= interest rate 4%
n= number of times interest applied per time period 2
t = number of times periods elapsed 2
