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nikklg [1K]
4 years ago
8

Evaluate the expression.

Mathematics
1 answer:
Bezzdna [24]4 years ago
4 0

Answer:

cos¯¹(root 37÷37)= 80.53

80.53*2=161.07

sin(161.07)=0.32

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A painting company will paint this wall of a building. The owner gives him the following dimensions.
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The given area of the 52\frac{1}{2} ft. by 33 ft. wall less the areas of the Windows and the Door give the area of the painted part of the wall as  \underline{1642\frac{9}{16}} ft.²

<h3>How can the area of the painted part be calculated?</h3>

The area of the painted part of the wall is \underline{1642\frac{9}{16}} ft.²

The given dimensions of the wall are;

The width of the wall = 52\frac{1}{2} ft.

The height of the wall = 33 ft.

The painted area = Area of the wall - (Area of the widows + The door)

Which gives;

52\frac{1}{2} \times 33 - \left(6\frac{1}{4} \times 5\frac{3}{4} + 3\frac{1}{8} \times 4 + 9\frac{1}{2}  + 4 \times 8 \right) = \mathbf{ 1642 \frac{9}{16}}

The area of the painted part of the wall is \underline{1642\frac{9}{16}} ft.²

Learn more about the area of a rectangle here:

brainly.com/question/18101587

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