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3 years ago

Please can you help me with my question! I'm desperate! It's due for Monday:

1 answer:

6 0

I observed that if I remove one (or all 8) piece(s) in the corners, and only them without adjacent ones, the total area does not change.

I consider the surface area of a small square as a unit of surface.

First class of solutions:

I removed all eight corners, leaving the total area unchanged.

I removed the central cube of the top surface obtaining an increase of the surface area with four units.

I removed one cube from the middle of an edge at the top (any of the four remaining) and I arrived at a figure with ten cubes less then the original one but with the same surface area.

(There's a lot more solutions here: https://nrich.maths.org/787/solution)

You might be interested in

What is the distance from P(2, –5) to the line y = –8? <br>a. –6 <br>b. 3 <br>c. 5<br> d. 10

hjlf

Plotting that point puts us at a y value of -5 (the y coordinate of the point P). y=-8 is a straight horizontal line through y=-8, so the distance from -5 to -8 is 3. Remember that distance is never negative. Distance is measured using the absolute value of the numbers. So b is your choice.

7 0

3 years ago

a rectangular prism is 11 3/5 meters long and 9 meters wide and 12 1/2 meters high what is the volume in cubic meters of the pri

bazaltina [42]

Volume=legntht imes widht time height
volume=11 and 3/5 times 9 times 12 and 1/2
volue=11 and 6/10 times 9 times 12 and 5/10
volume=11.6 times 9 times 12.5
volume=1305 m^3

8 0

3 years ago

Read 2 more answers

sales tax is added to the price of items sold on ebay. if someone in arizona buys an item online for 22.50 and the state sales t

Elden [556K]

Answer:

$23.98

Step-by-step explanation:

22.50 + 6.6% (1.485) = $23.98

4 0

3 years ago

Can anyone help me with number 10?

34kurt

Do you still need help?

6 0

3 years ago

Write the first five terms of the sequence in which the nth term is

ziro4ka [17]

Answer:

C) 2,6,24,120,720

Step-by-step explanation:

Here the n-th term An = $\frac{(n +2)!}{n + 2}$

A1 is the first term

A1 = (1 + 2)!/(1 + 2)

= 3!/3

A1 = 2

A2 is the second term

A2 = (2 +2)!/(2 +2)

= 4!/4

A2 = (1*2*3*4) /4

A2 = 6

A3 is the third term

A3 = (3 + 2)!/(3 +2)

A3 = 5!/5

A3 = 24

A4 is the fourth term

A4 = (4 + 2)!/(4 + 2)

A4 = 6!/6

A4 = 120

A5 is the fifth term

A5 = (5 + 2)!/(5 +2)

A5 = 7!/7

A5 = 720

Answer: C) 2,6,24,120,720

Thank you.

8 0

3 years ago