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marin [14]
3 years ago
14

Please help me with either one!

Mathematics
2 answers:
Serjik [45]3 years ago
4 0

9. The slash marks represent that x is 7 since they are congruent angles.

11. x = 60

A triangle is 180 degrees. Given is a 60 degree angle. Also slash marks are shown.

x + x + 60 = 180

2x + 60 = 180

-60 -60

2x = 120

2x/2 = 120/2

x = 60

I hope this helps you, have a wonderful day!

Vesnalui [34]3 years ago
3 0

Answer of 9 = 7 because those red arcs mean that both of those angles are the same, so if the angle on the right is 7, the angle on the left is 7

Answer of 11 = 60, because this is a equilateral triangle, which means all the sides are the same.

180 - 60 = 120                    (180 is in the equation because all interior sides of a triangle add up to 180)

120 divided by 2 = 60

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Anastaziya [24]

Let's let x equal the original price of the dress.


We know that 16.6666% is equal to 0.16666 in decimal form by dividing the percent by 100.


So we can set up the equation:


x-0.16666x=32.50


because we know the discount, and we know that the discount of the original price was subtracted from the original price.


So then let's simplify by taking out x, the common factor:


x(1-0.16666)=32.50


Then solve for x:


x(0.83333)=32.50


\frac{x(0.83333)}{0.83333} =\frac{32.50}{0.83333}


x=39


So now we know that the original price of the dress was $39.

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3 years ago
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3x-2y
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yaroslaw [1]
<span>He should use pounds.

Explanation<span>:
A bowling ball as we know it is an American item. In Britain, bowling most commonly means "lawn bowling," which uses different equipment. A bowling ball would be for the ten-pin bowling Americans enjoy. Since it is an American sport, we would not use the metric system; instead, we would use pounds.</span></span>
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This question is Incomplete because it lacks the appropriate diagram for the square pyramid. Please kindly find attached the required diagram

Answer:

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Step-by-step explanation:

From the question, we are told that the foil covers the body of the trophy including the bottom, hence the formula we would be applying =

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Where s = Height of the square pyramid

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s = 6 inches

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When you have to describe a 3D shape you have to keep the following definitions in mind:

<em>1. The face of a 3D shape is a flat surface.</em>

The shape on the picture has 3 rectangular faces and 2 triangular faces, a total of 5 faces.

<em />

<em>2. The edge is where two faces meet.</em>

For the shape on the picture, there are 3 edges, where the rectangular faces meet each other, and then three edges where the rectangular faces meet each of the triangular faces, this shape has a total of 9 edges.

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There are three vertices on each end of the shape, so it has a total of 6 vertices.

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