Fred and Wilma have a booth at the county fair. Fred is selling bowling balls, and has made $129. Wilma is selling bowling shoes
for $20 per pair. Write the expression that represents the total amount they would earn at the fair.
2 answers:
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The surface area of the figure given is of: 61.3 yd².
<h3>What is the combined surface area of a figure?</h3>The combined surface area of a figure is the area of each figure.
This figure is composed by:
- A circle of radius 3 yd.
- A triangle with base 6 yd and one leg 11.4 yd.
The area of the circle is given as follows:
For the triangle, we need to find it's height, which is the <u>leg of a right triangle, in which one of the sides is 3 and the hypotenuse is 11.4</u>, hence:
h² + 3² = 11.4²
h = 11 yd.
Hence the area of the triangle is:
A = 0.5 x 6 x 11 = 33 yd²
The surface area of the figure is:
9pi + 33 yd² = 61.3 yd².
More can be learned about the surface area of at brainly.com/question/21208177
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Answer:
The answer to your question is below
Step-by-step explanation:
csc α - cot α =
Work with the left part
Simplify
Multiply by the reciprocal
Simplify
Remember that
sin²α = 1 -cos²α
Substitute the previous equation
Simplify
The identity i proved.