The tangent at A is perpendicular to OA, so has a slope that is the negative reciprocal of that of the radius: -1/2.5 = -2/5.
3x^2-18+5=47
3x^2 = 60
x^2 = 20
x = 4.472 , x = - 4.472
Answer:
8
Step-by-step explanation:
The diameter is 18.8 feet
I believe the circumference is 59.0 feet
Answer:
answer E
Step-by-step explanation:
