Answer:
(2, -5)
Step-by-step explanation:
A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the objects. The polar coordinate of the coordinate (1, -3) is (√10, 288.435).
<h3>What are coordinates?</h3>
A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.
The polar coordinate of the coordinate (1, -3) are,
r = √(x² + y²) = √[(1)²+(-3)²] = √10
θ = tan⁻¹(-3/1) = -71.565 = 288.435
Hence, The polar coordinate of the coordinate (1, -3) is (√10, 288.435).
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6/30=8/6x-8
36x-48=240
36x=240+48
36x=288
x=288/36
x=2
Answer:
The diameter is: d = 5m
Step-by-step explanation:
We know that
Circumference of Circle = 2πr
Given that
The circumference of a circle = 5π
so the equation becomes
Circumference of Circle = 2πr
5π = 2πr
2πr = 5π
r = 5π/2π
r = 5/2 m
As we know that:
The diameter is twice the radius. i.e. d = 2r
Thus, the diameter is:
d = 2(5/2)
= 5 m
Therefore, the diameter is: d = 5m