Answer:
31/7
Step-by-step explanation:
The number 31/7 is irrational because it keeps going on and on, while 5/4 is only 1.25. Hope this helps!
i think its 80
Step-by-step explanation:
Answer:
(x - 3)² + (y + 1.5)² = 15.25
Step-by-step explanation:
Centre: midpoint of the diameter
(h,k) = (0+6)/2, (1-4)/2
= (3, -3/2)
Radius = ½(diameter)
Diameter = sqrt(6² + (-4-1)²)
sqrt(61)
Radius = sqrt(61)/2
Equation:
(x - h)² + (y - k)² = r²
(x - 3)² + (y + 1.5)² = 15.25
3x^2 + 9x - 4
3x^2 + 9x = 4
3(x^2 + 3x) = 4
Therefore, a = 3