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
Fed [463]
3 years ago
13

Express the edge length of a cube as a function of the cube's diagonal length d. Then express the surface area & volume of t

he cube as a function of the diagonal length.
Mathematics
2 answers:
Lorico [155]3 years ago
8 0
D = sqrt(3s^2) where s is the length of the side. Solving for s, 

<span>3s^2 = d^2 iff </span>
<span>s^2 = d^2 / 3 iff </span>
<span>s = sqrt(d^2 / 3) </span>
<span>= d / sqrt(3) or d sqrt(3) / 3 </span>

<span>Surface area of the cube = 6 s^2. Thus, </span>
<span>A = 6 (d / sqrt(3))^2 </span>
<span>= 6d^2 / 3 </span>
<span>= 2d^2 </span>

<span>Volume = s^3. Thus, </span>
<span>V = (d / sqrt(3))^3 </span>
<span>= d^3 / 3sqrt(3) </span>
<span>= d^3 sqrt(3) / 9</span>
IgorLugansk [536]3 years ago
8 0
D = sqrt(3s^2) , 

<span>3s^2 = d^2 </span>
<span>s^2 = d^2 / 3 </span>
<span>s = sqrt(d^2 / 3) </span>
<span>= d / sqrt(3) </span>
now we will find surface area 
therefore
<span>Surface area of the cube = 6 s^2.</span>
<span>Area  = 6 (d / sqrt(3))^2 </span>
<span>= 6d^2 / 3 </span>
<span>= 2d^2 </span>
now we shall find volume 
<span>V = s^3.</span>
<span>V = (d / sqrt(3))^3 </span>
<span>= d^3 / 3sqrt(3) </span>
<span>= d^3 sqrt(3) /9
hope this helps</span>
You might be interested in
Misty purchased a pair of jeans that were originally $24, but were on sale for 1/3 off the total price. How much did she save?
Alla [95]
1/3 of $24 = 8
she saved $8
5 0
3 years ago
Read 2 more answers
-13=r/9+8<br> what is r equal to?
AURORKA [14]
Answer: r=(-189)

first you subtract both sides by 8 and get -21=r/9

then you multiply 9 with each side and get -189 = r

you can check by rewriting the problem with -189 as r and solving the equation

7 0
3 years ago
Complete the function table,
weeeeeb [17]

Answer:

f(x)=x-2

f(2)=2-2=0

f(3)=3-2=1

you only have attach the number to x

4 0
3 years ago
Read 2 more answers
Evaluate the function.<br> f(x) = 2x2<br> Find f(-3)<br><br> Can anybody answer this?
o-na [289]

Answer:

18

Step-by-step explanation:

f(x) = 2x^2

Let x = -3

f(-3) = 2 * (-3)^2

Exponents first

f(-3)=2 *9

f(3) = 18

6 0
3 years ago
Read 2 more answers
Based on the diagram, what is the reduced area inside the blood vessel?
pychu [463]

Answer:

: Stroke Brain cells do not get the nutrients they need if blood flow to the brain …

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Consider five circles with a radii of 1, 2, 4, 8, and 16 inches. Write your answer in terms of pi r square. Compare the areas an
    11·1 answer
  • Graph the linear equation 3x - y = 12. Write the equation in slope-intercept form,
    11·1 answer
  • Plz help me im stuck
    14·1 answer
  • What is the slope of -6,-3,-2
    13·1 answer
  • Why is 3x 1/10 less than 3x10
    5·2 answers
  • (3x+2)^4 <br> Can someone help me with this answer !
    12·2 answers
  • Find the gradient of the function at given point. f(x,y)=ln(x^2+y^2)
    7·1 answer
  • Please help :) <br> Due asap <br> Thx
    6·1 answer
  • Heyyyyy ah ha ha ‍ help I’m begging please someone god bless
    14·1 answer
  • What is the product please <br> -1/6 x 7 x 2/5
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!