Answer:21 cm
Step-by-step explanation: The circle's circumference is 84 cm. 84 / 4 = 21. Therefore the length of the arc XY is 21 cm.
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Answer:
25.71%
Step-by-step explanation:
Although the first instinct would be to say that his approval rating changed by 18%, the actual percent change for the candidate's approval rating is given by the difference between both polls (18%) divided by the candidate's approval in the first poll (70%):

The percent change for the candidate's approval rating was 25.71%
Answer:
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Step-by-step explanation:
Answer:
the area of the shaded figure is 278.5ft