The answer to your question is A
Answer:
Step-by-step explanation:
Answer: B plz mark me bralny
Step-by-step explanation:
Answer: y+3 = 4( x + 1)
Step-by-step explanation:
The equation in point slope form is given as :
y -
= m ( x -
) , where m is the slope
slope = 4
point given : (-1,-3)
Using the formula :
y -
= m ( x -
)
and substituting the value , we have
y - (-3) = 4 (x -{-1} )
y+3 = 4( x + 1)
Area of sector = 1/2 * r^2 * x where r = radius and x = angle in radians
86 = 1/2 * r^2 * pi/4
r^2 = 2 * 86 * 4 / pi = 219
r = sqrt 219
= 14.80