The stress distribution on a structure is given by s = 2x^2+ 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 pounds per square inch?

auto insurance

step-by-step explanation:

1/4 because there is 4 grades.

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.