The main reason the United States entered World War<span> I in 1917 was the unrestricted attacks German submarines were making on American ships and ships containing American passengers. Additionally, Americans were enraged at a telegram British intelligence intercepted in which Germany sought an alliance with Mexico.</span>
C and E are the answers to your question.
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Answer:
The value of pi helped them calculate the circumference of Earth. The value of pi helped them explain that Earth is a rotating sphere.
Explanation:
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A) All judges are appointed at both the state and federal levels of the court system in the United States.