Select the correct answer. Lacy is making a new sail for her boat. The sail needs to have the given dimensions. Approximately ho
1 answer:
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
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The solution to the binomial expression by using Pascal's triangle is:
Pascal's triangle can be used to calculate the coefficients of the expansion of (a+b)ⁿ by taking the exponent (n) and adding the value of 1 to it. The coefficients will correspond with the line (n+1) of the triangle.
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1
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--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
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The expansion of (3x-4y)^11 will correspond to line 11.
Using the general formula for the Pascal triangle:
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