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mamaluj [8]
3 years ago
15

Area of Composite Shapes (Trapezoids and Triangles)

Mathematics
1 answer:
dolphi86 [110]3 years ago
3 0
It is 8.7cm just trust me bro I got it right
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the exterior angle of a regular polygon is one third the size of its interior angle. how many sides does the polygon have
Aloiza [94]

Answer:

8 sides

Step-by-step explanation:

let x be the exterior angle then 3x is the interior angle

interior angle + exterior angle = 180° , then

x + 3x = 180

4x = 180 ( divide both sides by 4 )

x = 45

the sum of the exterior angles of a polygon = 360°

since the polygon is regular with each exterior angle = 45°, then

number of sides = 360° ÷ 45° = 8

7 0
2 years ago
Find the value of a if given points are collinear (5,1) (3,2) and (1,a)​
Ksenya-84 [330]

9514 1404 393

Answer:

  a = 3

Step-by-step explanation:

The x-values 5, 3, 1 form an arithmetic sequence. The y-values will do the same: 1, 2, a = 1, 2, 3 -- a common difference of +1.

  a = 3

8 0
3 years ago
HALP PLeAASE i will give brainly ;D
a_sh-v [17]

Answer:

the total amount is £756.

Step-by-step explanation:

given, monthly charge =£16

rate per min of call= £13 per min(150free calls )

rate per texts= £15per text (150 free text)

now, total calls made =170calls

total text = 180 text

now, minimum charge for 150 calls is free

so, left calls = 20 calls

charge for 20 calls= 20×£13

therefore, the charge for 20 calls is £260

now, for text

no. of text = 182-150=32

now, charge for 32 text =£ 15× 32

therefore the charge of 32 text is £ 480.

now, total amount = monthly charge + extra call charge+ extra text charge.

or, total amount = £16+£260+£480

=£756

<em>therefore</em><em>, </em><em> </em><em>the</em><em> </em><em>total</em><em> </em><em>amount</em><em> </em><em>is</em><em> </em><em>£</em><em>7</em><em>5</em><em>6</em><em>.</em>

<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

6 0
3 years ago
PLEASE HELP <br> what is the value of the expression below? <br> (12^1/6)^6
AlekseyPX

Answer:

12=d

Step-by-step explanation:

correct answer :)

8 0
3 years ago
Read 2 more answers
A $1,287.99 TV was marked down at a 12% discount. What is the discounted price (or the reduced selling price)?
son4ous [18]

Answer:

1133.4312 US$

Step-by-step explanation:

Just use a calculator or write it down

7 0
2 years ago
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