Answer:
Step-by-step explanation:
In scientific notation you move the decimal over however many spots that the exponent's number gives
Step 1: 3x + 4y = 15
Step 2: Get in Slope intercept form = y=mx+b
Step 3: Subtract 3x from both sides since your trying to get Y alone
Step 4: 4y = -3x + 15
Step 5: Divide 4 from both sides since 4 cannot go into -3 or 15 leave it as is
Step 6: Y =

+

Step 7: Point slope form= y-y=m(x-x)
Step 8: (8, -2) are your points 8x and -2y
Step 9: Substitute
Step 10: y - 2 =

(x - 8)
Step 11: Distribute
Step 12: y - 2 =

+ -6
Step 13: Add 2 to both sides
Answer : y =

+ 4
because the x values are identical the radius would be found by subtracting the y values.
6-2 = 4
the radius is 4
Caca pipipoopoo checkkkkkkkk
3/4b-1/6=1/2×b
1.75b=.3
b=0.2
I believe this is right. But not 100%