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According to "Katherine Johnson Biography," why were NASA astronauts worried about "putting their lives in the care of the electronic calculating machines"?

The machines sometimes had problems and blackouts.

Astronauts were not used to working with complex machinery.

Astronauts were known to be very superstitious.

The machines were programmed by people like Katherine.

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unicorncupcake1

Answer:

D = The machines were programmed by people like Katherine.

Explanation:

In the book its says that she programmed the computer.

Hope this Helps!

Martebi

The NASA astronauts were worried about "putting their lives in the care of the electronic calculating machines" because The machines sometimes had problems and blackouts.

In the excerpt, in 1962, NASA were preparing for the orbital mission of John Glenn.

Katherine Johnson was called to work. The complexity of the orbital flight had needs the construction of a communications network, to link tracking stations to IBM computers.

The computers though programmed but astronauts were wary of putting their lives in the care of the electronic calculating machines, which were prone to hiccups and blackouts.

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