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
timurjin [86]
3 years ago
10

What is the surface area? I need help help

Mathematics
2 answers:
o-na [289]3 years ago
5 0

Answer:

2400

Step-by-step explanation:

SA = 2(lw + lh + wh) = 2(20^2 + 20^2 + 20^2) = 2(3 * 20^2) = 2(3 * 400) = 2 * 1200 = 2400

yarga [219]3 years ago
4 0

Surface Area=2400

Step-by-step explanation:

To find the surface area we need to use this formula: Surface Area=6a^2

Where a is the side lengths that are being provided by the cube, now we plug in 20 as a into the formula.

Surface Area=6(20)^2

Surface Area=6(400)

Surface Area=2,400

Hope I helped, have a nice day :)

You might be interested in
The width of a kitchen is 4.2 metres.
Svetradugi [14.3K]

Given:

The width of a kitchen is 4.2 metres.

Kitchen cupboard widths are 60 cm.

To find:

The number of kitchen cupboard that will fit in 4.2 metres.

Solution:

Let x be the number of kitchen cupboard that will fit in 4.2 metres.

Width of 1 cupboard = 60 cm

Width of x cupboards = 60x cm

We know that, 1 m = 100 cm.

Width of a kitchen = 4.2 metres

                              = 4.2×100 cm

                              = 420 cm

Now, the width of the x cupboards is equal to width of the kitchen.

60x=420

x=\dfrac{420}{60}

x=7

Therefore, the number of kitchen cupboard that will fit in 4.2 metres is 7.

5 0
3 years ago
B / -7 = 4<br><br> solve question correctly
Shkiper50 [21]

Answer:

b/-7=4

b=4*-7

b= - 28

Step-by-step explanation:

If this helps you mark as brainlist.!

4 0
3 years ago
Read 2 more answers
Help ASAP PLEASE look like a​
Ray Of Light [21]
The answer should be B.
7 0
3 years ago
Read 2 more answers
BRAINLIEST!!PLEASE HELP ME!
Andru [333]
Easiest way I could think of is choose a point in the gray area and use the X,Y to plug into the answers whichever one makes sense is correct.
8 0
3 years ago
Read 2 more answers
Solve the equation. 2/3 - 4x 7/2= -9x+ 5/6 step by step
Lostsunrise [7]

Answer:  \bold{x=\dfrac{11}{21}}

<u>Step-by-step explanation:</u>

\dfrac{2}{3}-\dfrac{4x+7}{2}=-9x+\dfrac{5}{6}\\\\(6)\dfrac{2}{3}-(6)\dfrac{4x+7}{2}=-9x(6)+(6)\dfrac{5}{6}\qquad \text{(multiplied by LCD) }\\\\4 - 12x-21=-54x+5\qquad \text{(simplified)}\\\\-12x - 17 = -54x + 5\qquad \text{(added like terms)}\\\\42x-17=5\qquad \text{(added 54x to both sides)}\\\\42x = 22\qquad \text{(added 17 to both sides)}\\\\x=\dfrac{22}{42}\qquad \text{(divided both sides by 42)}\\\\x=\dfrac{11}{21}\qquad \text{(reduced the fraction)}


NOTE: The sign between 4x and 7 is missing in the question you posted.  I assumed it was 4x + 7 in order to solve the equation.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is a zero of the function f(x) = 5x-20
    6·1 answer
  • What are two integers whose sum is -20
    8·1 answer
  • A colony of ants carried away 22 of your
    5·1 answer
  • A copy machine makes 24 copies per minute. How long does it take to make 114 copies?
    15·1 answer
  • In math how do you figure out distance between numbers
    15·1 answer
  • Slope is - 3 And (0,-4) is on the line
    14·2 answers
  • please help don't know how to do this A stone is an English measure of weight. There is 14 lb in 1 stone and 2.2 lb in 1 kg. A c
    14·1 answer
  • Need help asap will give brainly
    9·1 answer
  • Help me! l want the correct answers °_°​
    11·1 answer
  • Put the following equation of a line into slope-intercept form, simplifying all
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!