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## Find the sum of the given vectors. {image}

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**1.**2. 3. 4. Find the sum of the given vectors. {image} • {image} • {image} • {image} • {image}**Find 7a + 4b . a = 7i - 6j , b = 6i + 3j**• 73i - 30j • 75i + 30j • 73i + 30j • 74i - 30j • 74i - 29j**1.**2. 3. 4. Find a unit vector with the same direction as 3i - 5j + 2k. • {image} • 3i - j + k • {image} • i - j + k**A woman walks due west on the deck of a ship at 2 mi/h. The**ship is moving north at a speed of 25 mi/h. Find the speed of the woman relative to the surface of the water. Round the result to the nearest tenth. • 26.2 mi/h • 25 mi/h • 27.1 mi/h • 23.1 mi/h • 25.1 mi/h