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N76 [4]
3 years ago
11

What value of x makes 1/2 (3x+4) =1/2

Mathematics
1 answer:
Sever21 [200]3 years ago
5 0

Answer:

x = -1

Step-by-step explanation:

1/2 (3x +4 ) = 1/2

1/2 x 3x + 1/2 x 4 = 1/2

1.5 x + 2 = 1/2

1.5x = 1/2 -2

1.5x = -1.5

1.5x /1.5 = -1.5/1.5

x = -1

Check Back

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

1/2 ( 1) =1/2

1/2 =1/2

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please help me with these, show work or type how to do it ! Thank u, and yes I know they are wrong :/
mojhsa [17]
Question 8:

Steps:
1. Find the area of the 2 triangles at both end.
2. Find the lateral surface area (that is, 3 rectangles)
3. Add them up.

Step 1:
Area of triangle = 1/2 x base x height
Area of 1 triangle = 1/2 x 4 x 5.7 = 11.4 m²
Area of 2 triangles = 11.4 x 2 = 22.8 m²

Step 2:
Area of the lateral surface area = perimeter of the triangle x height
Area of the lateral surface area = (4 + 7 + 5.7) x 8.6 = 143.62 m² 
 
Step 3:
Total surface area = 22.8 + 143.62 = 166.4 m² (nearest tenth)

Answer: 166.4 m²

Question 9:

Steps:
1. Find the area of the square base.
2. Find the area of the 4 triangles.
3. Add them up.

Step 1:
Area of the square = 8 x 8 = 64 cm²

Step 2:
Area of 1 triangle = 1/2 x 8 x 15.3 = 61.2 cm²
Area of 4 triangles = 61.2 x 4 = 244.8 cm²

Step 3:
64 + 244.8 = 308.8 cm²

Answer: 308.8 cm²

Question 10:

Volume = Length x Width x Height 
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Answer: 30 ft³
5 0
3 years ago
What are the numbers in the smallest group of repeating digits when 41/11 is converted to a nonterminating decimal?
harkovskaia [24]

Answer:

72

Step-by-step explanation:

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7 0
3 years ago
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zaharov [31]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
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Alex17521 [72]

Answer:

C. φ

Step-by-step explanation:

tan \phi \:  =  \frac{6}{5}  \\  \\ tan x \:  =  \frac{6}{5}  \\  \implies \: x =  \phi

Thus \Phi can replace x

6 0
3 years ago
BRAINLIEST BRAINLIEST BRAINLIEST PLEASE ANDSER IT IS TIMED THANK YOU SO MUCCH
Doss [256]

Answer:

x=-b/2a

Step-by-step explanation:

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3 years ago
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