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
ivolga24 [154]
3 years ago
8

What is the difference in the surface area of two cubes, one with edge 15 and one with an edge of 12

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Remark

A cube has six sides, all of them equal. The formula for 1 side is s^2. The formula for all six = 6s^2.


Step One

Find the surface area of the larger cube.

Area = 6 *s^2

s = 15

Area = 6 *15^2

Area = 6 * 225

Area = 1350


Step Two

Find the area of the smaller cube

Area = 6s^2

Area = 6 * 12^2

Area = 6 * 144

Area = 864


Step Three

Find the difference

Area1 - Area2 = difference

1350 - 864 = 486

The difference is area = 486 units^2 <<<<< Answer


There is a slightly shorter way. Take out the common factor of 6

Difference = 6 * (15^2 - 12^2)

Difference = 6 * (225 - 144)

Difference = 6 * (81)

Difference = 486

You might be interested in
Choose the table that represents g(x) = −2⋅f(x) when f(x) = x + 4.
grigory [225]

Answer: THIRD OPTION.

Step-by-step explanation:

Since  g(x) = -2f(x), then g(x) is:

g(x)=-2( x + 4)\\\\g(x)=-2x-8

In order to find which table represents g(x) = -2f(x) when f(x) = x + 4, you can follow these steps:

1. Substitute x=1 into the function g(x)=-2x-8:

 g(1)=-2(1)-8\\\\g(1)=-10

2. Substitute x=2 into the function g(x)=-2x-8:

 g(2)=-2(2)-8\\\\g(2)=-12

3. Substitute x=3 into the function g(x)=-2x-8:

 g(3)=-2(3)-8\\\\g(3)=-14

Notice that those ouput values (for x=1,\ x=2 and x=3) matches with the table provided in the third option. That table represents g(x) = -2f(x) when f(x) = x + 4:

6 0
3 years ago
Read 2 more answers
What is the standard form of the number shown below 5×100+2×10+4×1+6×0.1+7×0.01+3×0.001
Studentka2010 [4]

Answer:

524.673

Step-by-step explanation:

4 0
2 years ago
The cube root of rvaries inversely with the square of s. Which two equations model this relationship
VARVARA [1.3K]

Answer:

3√r = k/s²

s²r^1/3 = k

Step-by-step explanation:

Cube root of r = 3√r

Square of s = s²

cube root of r varies inversely with the square of s

3√r = k/s²

Cross product

3√r * s² = k

s²r^1/3 = k

Note:

r^1/3

= 3√r

7 0
3 years ago
In a school with 2,000 students, a random sample of 120 students were asked which fruit is their favorite. Their responses are s
ki77a [65]
We know that

<span>Out of 120 students----------> 34 chose orange as the favorite fruit
</span>Find the <span>percentage
</span><span>percentage=34/120------> 17/60-----> 0.2833------> 28.33%

for </span>2,000 students
0.2833*2000=566.67-----------> about 567 students

the answer is
about 567 students
3 0
3 years ago
Read 2 more answers
Identify the property used in each step of solving the inequality 3x – 2 &gt; -4.
jasenka [17]

Answer:

2) is addition property

3) is multiplication property

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which mathematical term cannot be defined for all cases in a system of geometry?
    5·1 answer
  • Simply 6^-1(4^-2) plz help
    14·1 answer
  • Help me plzzzz i need help
    11·2 answers
  • I need some help in this problem...<br> -2/3x=-468/17
    7·2 answers
  • Hey can anybody help me out with this question please
    10·2 answers
  • Question 11 (1 point)
    8·2 answers
  • The inverse of a function is a function. always /sometimes /never
    9·2 answers
  • Help me, I got the answer 4 but I’m not positive on it
    15·1 answer
  • Is 1.52631579 a rational or irrational number
    5·1 answer
  • On 10.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!