A number cube has edges of 8 centimeters. What is the surface area of the number cube?

1 answer:

DIA [1.3K]2 years ago

4 0

Answer:

384 square centimeters

Step-by-step explanation:

The surface area formula for a cube is 6L^2

(L=length or in this case edge)

Plug in values and solve the formula.

SA=6L^2

SA=6(8^2)

SA=6(64)

SA=384 square centimeters

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nata0808 [166]

Answer:

x = 2

Step-by-step explanation:

Distribute

3 (−4) = 2 (−2+1)

3 − 12 = 2 (-2x +1)

Distrubute again

3x - 12 = -4x + 2

Add twelve to both sides of the equation

Simpfly

3x = -4x + 14

Add 4x to both sides of the equation

simpfly

7x = 14

Divide both sides of the equation by the same term

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x = 2

5 0

3 years ago

oksian1 [2.3K]

Answer:

-30% or 30% decrease

Step-by-step explanation:

What's percentage decrease?

Percent decrease is the difference between the initial value and new value, indicating a loss of value.
The formula to find percent decrease is $\frac{NV-IV}{IV} * 100$ , where NV = new value and IV = initial value.

How do we solve this problem?

We know that the original value was $60, so that represents IV. Also, now that the price is $42, it represents NV.
Now, we plug in the values!
$\frac{42-60}{60} * 100$
$\frac{-18}{60} * 100$
$-\frac{3}{10} * 100$
$-3 * 10$
$-30$