mprjug6
25.10.2019 •
Mathematics
Sarah and kelvin are calculating the area of a circle with a radius of 52 cm. kelvin uses 3.14 for pi when calculating this area while sarah uses the pi button on her calculator. kelvin gets a solution of 8,490.56 cm2, and sarah gets a solution of 8,494.87 cm2.
a. both answers are equally accurate.
b. kelvin; he did not have to round his answer.
c. neither answer is accurate as pi or 3.14 is not in the formula for the area of a circle.
d. sarah; the pi button on the calculator gives a more accurate representation for pi than 3.14.
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Ответ:
Correct
The solution is Sarah; The pi button on the calculator gives a more accurate representation for pi than 3.14. Using 3.14 as an approximation for pi yields a less accurate result.
Step-by-step explanation:
Ответ:
The two numbers are 27 and 18.
EXPLANATION27 + 18 = 45
27 - 18 = 9