1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
4 years ago
14

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

Mathematics
1 answer:
maria [59]4 years ago
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
Find the surface area of the rectangular prism.<br> 2 cm<br> 5 cm<br> 10 cm
malfutka [58]

Answer:

2(2x5) + 4(5x10)

2(10) + 4(50)

20 + 200

220 cm. is your answer

3 0
3 years ago
Read 2 more answers
Derrick is 4 years younger than twice his brothers age. Which expression could be used to find derricks age?
sladkih [1.3K]

Answer:

A. 2x-4

Step-by-step explanation:

Let his brother's age be x.

Derrick is 4 years younger than twice his brother's age. Which means derrick is 4 years younger than 2x.

Which makes derricks age 2x-4 since he is 4 years younger

8 0
4 years ago
N × $3.05 = $305.00=
sdas [7]

Answer:

n = 100

Step-by-step explanation:

Step 1:

n × $3.05 = $305            Equation

Step 2:

n = $305 ÷ $3.05          Divide

Answer:

n = 100

Hope This Helps :)

4 0
3 years ago
3(2+q)+15 simplified is
pshichka [43]
3(2+q)+15
First you distribute 3 with 2 and q
(3)(2)+(3q)+15
And that gives you 6+3q+15
Next you combine like terms
6+3q+15
(3q)+(6+15) leave 3q the way it is and then add 6+15
And the answer is 3q+21

5 0
4 years ago
How do a number line help to how that 3 divided by 1/4 is equal to 3 x 4
iren [92.7K]
Please answer my question
3 0
3 years ago
Other questions:
  • Which ordered pair is the best estimate for the solution of the system of equations?
    13·2 answers
  • 20 points and crown determine the product of each set of polynomials (2x-3)(4x+5)=0
    12·2 answers
  • Y=2x+9 what the answer
    12·1 answer
  • What is equivalent to 4/9 X 7
    7·1 answer
  • What is the value of x?
    10·2 answers
  • A sidewalk bounds a circular playground at GeoCity Park. Parents can exercise by walking around on
    15·1 answer
  • 7+9p= is?<br> Help please
    9·2 answers
  • The sum of two numbers is 51. If one fourth of one number exceeds one fifth of another number by 6, which of the following is th
    11·1 answer
  • i dont know how to solve this questions without a graphing on a calculator but i can't use calculator for this question pls help
    6·2 answers
  • a computer sales associate makes $74 each day that he works and makes approximately $20 in commission for each computer that he
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!