In 88 minutes, he uses 132 balloons to make 22 identical balloon sculptures. How many minutes does it take to make one balloon s
1 answer:
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Answer:
Step-by-step explanation:
The given trigonometric equation is .
We can either use the Pythagorean identity or the right angle triangle to solve for .
According to the Pythagorean identity,
Recall that, the cosine function is an even function, therefore
.
We substitute this value in to the above Pythagorean identity to get;
But we were given that,
, so we choose the negative value.
The correct answer is B
