What elements in domain has the image 5 under function f(x)= 3x+ 2?
1 answer:
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70.1 ft² of fabric is needed by Lacy to make the sail boat.
<h3>Trigonometric ratio</h3>Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Let b represent the base of the triangle and h the height, hence:
sin(60) = h / 18
h = 15.6 feet
sin(30) = b / 18
b = 9 feet
The area of triangle = (1/2) * b * h = 0.5 * 9 * 15.6 = 70.1 ft²
70.1 ft² of fabric is needed by Lacy to make the sail boat.
Find out more on Trigonometric ratio at: brainly.com/question/6459892
Answer:
The variance is 53.29 kg²
Step-by-step explanation:
The standard deviation is the square root of the variance.
So
In which problem, we have that:
So
The variance is 53.29 kg²