A calculator was used to perform a linear regression on the values in the table. The results are shown to the right of the table. y 10 LinReg y = ax+b a--3.1 3 b-12.9 r 29886831276 r=-.9943254636 -2 What is the line of best fit? O A. y=12.9x= 3.1 O B. -0.994 = -3.1x 12.9 C. y=-3.1x+12.9 D. y=-0.994x + 12.9

m∠a is 90°

m∠b is 40°

for future students the answer is b

hope i

-lavira: )

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.