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Sholpan [36]
3 years ago
13

How to do this question plz ​

Mathematics
1 answer:
andre [41]3 years ago
7 0
The correct answer is : 340 cm^2


Explain

Trapezium area
1/2h (a+b)

Base area = 1/2h (a+b)

Base area = 1/2(3)(8+12)


As 20/2 = 10

Base area = 3(10)

Base area = 30 cm^2

Use perimeter: 28

Base Area = 30
Height = 10


Surface area = 2(30)+28(10)

Surface area= 60+ 280

Surface are = 340


Glad this help you

Good luck :-D




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PSYCHO15rus [73]
1 2/3 + 3 1/3 = 5/1
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5 0
2 years ago
=) The perimeter of a rectangular field is 336 m.
goldenfox [79]

Answer:

Length of the field: 94 m

Width of the painting: 61 cm

Step-by-step explanation:

Use the perimeter formula, P = 2l + 2w, to find the length:

Plug in the perimeter and width into the equation:

P = 2l + 2w

336 = 2l + 2(74)

336 = 2l + 148

188 = 2l

94 = l

So, the length of the field is 94 m.

To find the width of the painting, use the area formula, A = lw

Plug in the area and length into the equation:

A = lw

5795 = 95w

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So, the width of the painting is 61 cm.

Length of the field: 94 m

Width of the painting: 61 cm

4 0
2 years ago
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6 0
3 years ago
Simplify. -10m+2m^4-13m-20m^4
Ulleksa [173]
First one:

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when adding the like terms
look at the:
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placehloder letter (x adds with x and y adds with y and so on)

-10m+2m^4-13m-20m^4
powers: m^1 and M^4
placeholders: all m


add
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second one:
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so if you multipliy
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when multiply with coeficients
2x^2yz^3 times 4x^4y^2z^2=8x^6y^3z^5
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group like terms

(2/3 times 6) times (p^4 times p^2) times (y^3 times y^4) times (s^5 times s^3)
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8 0
3 years ago
Can someone help me find the domain of this function please ?
ratelena [41]

Answer: It is A=-1<x<-6 is the domain

4 0
3 years ago
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