*** The stress distribution on a structure is given by s=2x2+4x−30 where s is stress in pounds per square inch and x is the distance in feet from a reference point. At what distance is the stress equal to 0?

if x decreases by 4 then y increases by 10

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

10000

step-by-step explanation: divide by 2,