Step-by-step explanation:
In my opinion the reason 4 is incorrect
9 is the answer because 1/3 = 3
The amount of fabric needed to cover 8 blocks is 192cm.
<h3>How much fabric is needed to cover 8 blocks?</h3>
In order to determine the amount of fabric needed, the total surface area of the rectangular prism has to be determined. The total surface area of the rectangular prism is the sum of the areas its faces.
Total surface area of a rectangular prism = 2 (lw + wh + lh)
where:
- l = length
- w = width
- h = height
2 x [(4 x 1/2) + (1/2 x 2) + (4 x2)] = 24cm
Fabric needed fo 8 blocks = 24 x 8 = 192cm
To learn more about rectangular prisms, please check: brainly.com/question/8890358
Answer:
50
Step-by-step explanation:
4w+10=4*10+10=40+10
40+10=50
Answer:
Step-by-step explanation:
<u>Solve the equation:</u>
- 3x² - 12 = 0
- x² - 4 = 0
- x² = 4
- x = √4
- x = 2 is the positive solution
Correct choice is B
