Use a calculator to find the approximate value of the expression rounded to two decimal places.
-$\cos \frac { 3 \pi } { 7 }$
A) $0.22$
B) $1.05$
C) $1.00$
D) $0.27$

Name: Use a calculator to find the approximate value of the expression rounded to two decimal places. -$\cos \frac { 3 \pi } { 7 }$ A) $0.22$ B) $1.05$ C) $1.00$ D) $0.27$
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Question

Quizplus · Accepted Answer

Using a calculator to find $\cos \frac { 3 \pi } { 7 }$, the result is approximately 0.2225, which rounded to two decimal places is 0.22.

Use a Calculator to Find the Approximate Value of the Expression