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malfutka [58]
3 years ago
10

Please help, 20 points

Mathematics
1 answer:
nlexa [21]3 years ago
7 0

Answer:

25x

Step-by-step explanation:

Perimeter is all sides added up

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Solve for s.<br> -7 = 7s + 28
Zinaida [17]

Answer:

s=  -5

Step-by-step explanation:

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2 years ago
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if a shape is a regular pentagon with five sides, which of the following must be true? Check all that apply
julsineya [31]

Answer:

A. It has reflectional symmetry

B. It is symmetrical

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Step-by-step explanation:

we know that

A regular pentagon has 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides

Every regular polygon has reflectional symmetry

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therefore

A. It has reflectional symmetry ------> Is true

B. It is symmetrical -----> Is true

C. It has exactly one line of symmetry ----> Is false

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jenyasd209 [6]

Answer:

Step-by-step explanation:

first solve for y=mx+ b format

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y= 1/2x+4

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8 0
3 years ago
Which of the following transformations maps A to A’ in the figure below
LenKa [72]

Answer:

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Step-by-step explanation:

If (x , y) is a point in xy-coordinates

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1- 90°

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2- 180°

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3- 270°

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If we assume A is (1 , 7)

1- ⇒ (-7 , 1) ⇒ rotation 90° about the origin

2- ⇒ (-1 , -7) ⇒ rotation 180° about the origin

3- ⇒ (7 , -1) ⇒ rotation 270° about the origin

∵ x-coordinate of point A small and +ve and y-coordinate large and +ve

∵ x-coordinate of point A' large and +ve and y-coordinate small and -ve

∴ The answer is rotation 270° about the origin

∴ The answer is rotation 270° about the origin

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A store is instructed by corporate headquarters to put a markup of 11​% on all items. An item costing ​$18 is displayed by the s
MrRissso [65]
The manager’s likely error was forgetting to add the $2 back to the $18. Because $2 is roughly 11% of $18 for a markup you need to add the $2 back into the $18 for a total of $20.
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