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WINSTONCH [101]
2 years ago
14

A , B , C , D ??????????????????????

Mathematics
1 answer:
Mila [183]2 years ago
4 0

Answer:

a

Step-by-step explanation:

if this is wrong im sorry

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What is the surface area?<br> 4 cm<br> 7 cm<br> 3 cm<br> square centimeters
vladimir1956 [14]
Ok so i would do 4x7x3 which equals 84
brainest:)
3 0
3 years ago
Simplify and find the perimeter of the triangle
lbvjy [14]

Answer:

2x - 19

Step-by-step explanation:

Perimeter = sum of sides

First let's simplify each side

We can simplify each side by using distributive property. Distributive property is where you multiply the number on the outside of the parenthesis by the numbers on the inside of the parenthesis.

2(x + 5)

Distribute by multiplying x and 5 by 2

2 * x = 2x and 2 * 5 = 10

2x + 10

1/2(4x + 8)

Distribute by multiplying 4x and 8 by 1/2

1/2 * 4x = 2x and 1/2 * 8 = 4

2x + 4

-3(2x + 11)

Distribute by multiplying 2x and 11 by -3

-3 * 2x = -6x

-3 * -33

-6x - 33

Finally add all the simplified expressions ( remember that they represent the side lengths of the triangle )

2x + 10 + 2x + 4 - 6x - 33

Combine like terms

2x + 2x - 6x = -2x

10 + 4 - 33 = -19

Perimeter: -2x - 19

7 0
2 years ago
Read 2 more answers
Help me with this. i am not smart ..
marta [7]
I’m not that smart... but let me use first as example.. 240 divided by 4
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3 years ago
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50 POINTS!!! ASAP plz answer all questions will give brainiest!!!!
Sedaia [141]

Answer:

1. 27x^{2} -78x+16

2. not completely sure but i think its x= -2 + 3i

3.x = 2 i √ 5 , − 2 i √ 5

4.x = − 9 ± √ 73 /2

5. Im not sure...

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7 0
3 years ago
Some number added to seventeen
Oksanka [162]

Answer:

x+17

Step-by-step explanation:

x + 17 is the answer

5 0
3 years ago
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