Answer:
I would say A but I'm not sure
Step-by-step explanation:
Sry if I' m wrong <3
(18-x)-4+9 I’m pretty sure this is correct
OOOF! I would send a screenshot to my teacher if that happened. Online math sometimes does that. On maths watch I answered correctly but it doesn't accept the answer. Its so annoying
Answer:
Cost = Rs. 6095.95
Step-by-step explanation:
We are given the perimeter as 440m.
Mow,perimeter of a circle is also called circumference.
Formula for circumference of a circle is;
C = 2πR
Thus:
2πR = 440
R = 440/2π
R = 70 m
We are told that A path 1.4m runs inside the park. Thus radius of smaller circle: r = 70 - 1.4 = 68.6 m
Area of larger circle: A1 = πR² = π(70²)
A1 = 4900π
Area of smaller circle: A2 = πr² = π(68.6²)
A2 = 4705.96π
Area of path = A1 - A2
Area of path = 4900π - 4705.96π
Area of path = 194.04π Sq.m
We want to find the cost of gravelling the path at the rate of Rs.100 per square meter.
Thus;
Cost = 100 × 194.04π
Cost = Rs. 6095.95
It's basicly adding and subtracting hope this helps
