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nikitadnepr [17]
3 years ago
12

I really need this answer

Mathematics
2 answers:
yuradex [85]3 years ago
8 0

Answer:

A) -2 1/2 x

Step-by-step explanation:

= -6(3/12 x - 8/12 x + 10/12 x)

= -6(5/12 x)

= - 5/2 x

= - 2 1/2 x

HACTEHA [7]3 years ago
4 0

Answer:

A is the answer.

Step-by-step explanation:

What you do is you multiply -6 into each of the fractions and then add or minus the fractions together.

-6(1/4x)=-3/2x

-6(-2/3x)=4x

-6(5/6x)=-5x

-3/4x+4x-5x=-2.5 or A.

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Answer:

The surface area of the lower rectangle is 20cm x 4cm= 80 square cm

the surface area of the two triangles is 12 square centimetres

the surface area of one of the top rectangular faces is 20×5= 100 square centimetres

the surface area of the other is 20×3= 60 square centimetres

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6 0
3 years ago
Help plz i will make u a brainllest 24.Can you use the SSS Postulate or the SAS Postulate to prove abd=dca? 26 28
Alex_Xolod [135]

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<u>Step-by-step explanation:</u>

24.

<u>Statement</u>                    <u>Reason</u>

1. BD = CA                    1. Given

2. AB = CD                  2. Given

3. AD = AD                  3. Reflexive Property

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3 years ago
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Daniel [21]
For a 30-60-90 triangle
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Answer:

First: 2.05

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