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
forsale [732]
3 years ago
9

The surface area of the cube is 54 square feet. What is the length, in feet, of one edge of the cube?​

Mathematics
1 answer:
Brut [27]3 years ago
5 0

Answer:

3 ft

Step-by-step explanation:

A cube is made of 6 equal faces each of which is a square with the same side length. The surface area of the cube is the surface area of one side multiplied by 6. We know the surface area is 54 so divide this by 6.

54/6 = 9 ft^2

Since the surface must be a square, take the square root of 9 which is 3 ft. The length of one edge of the cube is 3 ft.

You might be interested in
If x+1/x = 12, find the value of x^2+1/x^2​
viktelen [127]

\boxed{\sf (a+b)^2=a^2+b^2+2ab}

Now

\\ \sf\longmapsto x+\dfrac{1}{x}=12

\\ \sf\longmapsto \left(x+\dfrac{1}{x}\right)^2=12^2

\\ \sf\longmapsto x^2+2\times x\times \dfrac{1}{x}+\left(\dfrac{1}{x}\right)^2=144

\\ \sf\longmapsto x^2+\dfrac{1}{x^2}+2=144

\\ \sf\longmapsto x^2+\dfrac{1}{x^2}=144-2=142

4 0
3 years ago
Read 2 more answers
6.<br> Solve the equation *x + 3 ={x +3
Arlecino [84]

Answer:

x=4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Use properties of exponents to rewrite the following expressions as a number or an exponential expression with
Lerok [7]

Answer:

[(2)^√3]^√3 = 8

Step-by-step explanation:

Hi there!

Let´s write the expression:

[(2)^√3]^√3

Now, let´s write the square roots as fractional exponents (√3 = 3^1/2):

[(2)^(3^1/2)]^(3^1/2)

Let´s apply the following exponents property: (xᵃ)ᵇ = xᵃᵇ and multiply the exponents:

(2)^(3^1/2 · 3^1/2)

Apply the following property of exponents: xᵃ · xᵇ = xᵃ⁺ᵇ

(2)^(3^(1/2 + 1/2)) =2^3¹ = 2³ = 8

Then the expression can be written as:

[(2)^√3]^√3 = 8

Have a nice day!

7 0
3 years ago
Determine whether the Ratios 5/7 and 21/15 are equivalent. *<br> 1 point<br> Yes<br> No
aleksley [76]

Answer:

False

Step-by-step explanation:

It would have been right if the ratio was 15: 21 because 5*3:7*3= 15:21. You know that in ratio we can't interchange the numbers.

5 0
3 years ago
What is the correct slope intercept form of the equation y + 16 = 3(x - 0) ?
Sindrei [870]

slope intercept form is just solve for y

y+16=3(x-0)

y+16=3(x)

y+16=3x

mius 16 both sides

y=3x-16

3rd option

8 0
4 years ago
Other questions:
  • Write the quadratic function in vertex form: f(x) = 4x2 + 2x -5
    14·2 answers
  • Which equation represents a proportional relationship that has a constant proportionality equal to 0.7
    14·1 answer
  • The sum of a number y and 9 is a least -1
    7·1 answer
  • HELP PLEASE!Write the equation of the line parallel to y = –x + 5 passing through the point (9, –1).
    9·1 answer
  • PLZ HELP!!!!! WILL GIVE BRAINLIEST!!!!!!<br><br> Solve for x.
    14·2 answers
  • Description in the picture
    9·2 answers
  • Please Help Giving Brainliest!!!!! (05.06)Which net matches the solid figure shown below? A three-dimensional cube with a height
    10·1 answer
  • Which of the following expressions is not equivalent to the others?
    9·2 answers
  • Solve for x<br> X=<br> Please explain how you got the answer.
    7·2 answers
  • How would yoy describe movements that result in an image in the same position?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!