All categories

3 years ago

A cube-shaped item needs to be painted. The item’s edge length is 2 cm. What is the total surface area that will be painted?

2 answers:

5 0

Each face of the cube has an area of 4cm^2 (2*2 = 4). A cube has six faces so the total surface area is 24cm^2 (4cm^2*6).

KatRina [158]3 years ago

5 0

Well find the area of one face pf a cape which is a square so all sides will be the same length. 2 times 2 is 4 so the area of one face of the cube is 4. There are 6 faces so you multiply by 4.

6 times 4 is 24.

The total surface area that will be painted is 24cm^2.

Hoped I helped!

You might be interested in

If f(x) = 2x2 - 5 and g(x) = 3x + 3, find (f - g)(x).

Vera_Pavlovna [14]

Answer: A. 2x2 - 3x - 8

Just subtract the functions and combine like terms
(f - g)(x) = f(x) - g(x)
(f - g)(x) = 2x^2 - 5 -(3x + 3)
(f - g)(x) = 2x^2 - 5 - 3x - 3
(f - g)(x) = 2x^2 - 3x - 8

7 0

3 years ago

Kenya solved the equation below. Negative 6 (x minus 2) + 3 x = negative 3 (x + 3) + 21 What is the solution to Kenya's equation

777dan777 [17]

Answer: No solution

Step-by-step explanation:

-6(x - 2) + 3x = -3(x + 3) + 21

-6x + 12 + 3x = -3x - 9 + 21

Collect like terms

-6x + 3x + 3x = -9 + 21 - 12

-6x + 6x = - 9 + 9

0 = 0

In this scenario, it can be deduced that there is no solution to Kenya's equation.

4 0

3 years ago

A mahogany desk with a cash price of $810 is offered on the installment plan at $50 down and $58 per month for 15 months. What i

Sergio039 [100]

Total cost
50+(58×15)
=920

5 0

4 years ago

Read 2 more answers

Evan bought a book on training for a triathlon. The book cost $13.95. He gave the cashier a $20 bill. How much

strojnjashka [21]

Answer: He received $6:05.

Step-by-step explanation:

I got this by subtracting $13.95 from $20.00.

3 0

3 years ago

Read 2 more answers

2. The area of the base of the cone is 64π cm2 and the altitude is 6 cm. Calculate the cone: (a) the length of the constituent;(

andriy [413]

Answer: We have to calculate the (i) volume and (ii) the surface area of the cone:

$\begin{gathered} A=\pi r^2+\pi rl\rightarrow(1) \\ \\ V=\pi r^2\frac{h}{3}\rightarrow(2) \end{gathered}$

The formula (1) is for the lateral surface of the cone and the formula (2) is for the volume of the cone, the unknowns are determined as follows:

$\begin{gathered} r=\sqrt{\frac{64\pi}{\pi}}=8cm \\ \\ r=8cm \\ \\ l=\sqrt{r^2+h^2}=\sqrt{(8cm)^2+(6cm)^2} \\ \\ l=\sqrt{100}=10 \\ \\ l=10 \end{gathered}$

Therefore the volume and the lateral surface area is calculated as follows:

$\begin{gathered} \begin{equation*} A=\pi r^2+\pi rl \end{equation*} \\ \\ A=\pi(8)^2+\pi(8)(10) \\ \\ A=144\pi cm^2\Rightarrow(x) \\ \\ \begin{equation*} V=\pi r^2\frac{h}{3} \end{equation*} \\ \\ V=\pi(8cm)^2\frac{6cm}{3} \\ \\ V=128\pi cm^3\Rightarrow(y) \end{gathered}$

Therefore x and y are the answers.

5 0

1 year ago