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The image for this question can be found at: screenshots(dot)firefox(dot)com/AsFVDd1o7hceJtQT/null The square has side length 12 and the area of the blue region is 12 What is the combined area of the yellow regions?

A rocket fires a projectile at a speed of 0.95c (relative to the rocket) while traveling past the Earth. An earthbound scientist measures the projectile's speed to be 0.90c. What was the rocket's speed as a fraction of c?

Let m be the width of the frame. Then: (50-2m)(40-2m)=1344 2000-180m+4m²=1344 4m²-180m+656=0 m²-45m+164=0 (m-41)(m-4)=0 m=41 or 4 The frame is 4 inches wide ....................