Katherine Johnson helped launch the first American astronaut into orbit. She was one of the most trusted NASA mathematicians. Combine the sentences into one sentence. Do not change any words or add any new words.

Katherine Johnson was one of the most trusted NASA mathematicians; She helped launch the first American astronaut into orbit.

Explanation:

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Answer not changing any words or add any new words.

Katherine Johnson helped launch the first American astronaut into orbit, she was one of the most trusted NASA mathematicians.

Answer changing or add new words.

Katherine Johnson helped launch the first American astronaut into orbit and was also one of the most trusted NASA mathematicians.

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explanation: