What is( 7^4 * 9^-3 +7^5 * 9^-4) / 7^4 * 9^-4
2 answers:
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Answer:
radius = 5
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
Here r² = 25 ( take the square root of both sides )
r = = 5