Answer:
centre = (2, - 4 ), radius = 3
Step-by-step explanation:
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
(x - 2)² + (y + 4)² = 9 ← is in standard form
with centre = (2, - 4 ) and r = 
= 3
Answer:
7 1/40
Step-by-step explanation:
7.025
= 7025/1000
=281/40
7 1/40
Answer:
p²q-pr²-pq+r²
p²q-pq-pr²+r²
taking common from two term
pq(p-1)-r²(p-1)
again taking common
(p-1)(pq-r²)
is your answer
Depends how long each call is.
80 people divided by 4 phones is 20 rotataions on the phone.
If each call is 2 minutes that’s 20x2 = 40 minutes.
