Step-by-step explanation:
It is given that, an air conditioning system can circulate 320 cubic feet of air per minute. We need to find how many cubic yards of air can it circulate per minute?
1 yard = 3 foot
1 feet = (1/3) yard
320 feet = 106.66 yard
So, it will circulate 11.85 cubic yard of air per minute.
Using relations in a right triangle, considering c as the hypotenuse, we have that the length of side A is:
The relations in a right triangle are given as follows:
From the information given, we can build the following relation:
cos(A) = a/c.
More can be learned about relations in a right triangle at brainly.com/question/26396675
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We have the expression:
And want to evaluate in y=5, this means we have to replace y in the expression for 5 and calculate the value of the expression, so:
The expression is 30 when y=5.