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2 years ago

The area of the face of a cube is 9 square meters. what is the volume of the cuber

Mathematics

1 answer:

Helga [31]2 years ago

6 0

Answer:

Step-by-step explanation:

We know: All faces of a cube are squares.

The formula of an area of a square with a side s:

A = s²

We have A = 9m²

Substitute:

s² = 9 → s = √9 = 3 m.

The formula of a volume of a cube with an edge s:

V = s³

Substitute:

V = 3³ = 27 m³

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Find the volume of the rectangular prism Thank you!!

Brrunno [24]

Answer:90

Step-by-step explanation: do length x base x height to get your answer

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2 years ago

On the set of axes below, solve the following system of equations graphically and state the coordinates of all points in the sol

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

For this qestion u will do step b

6 0

1 year ago

1 Point

I am Lyosha [343]

Option C

The ratio for the volumes of two similar cylinders is 8 : 27

<h3>Solution:</h3>

Let there are two cylinder of heights "h" and "H"

Also radius to be "r" and "R"

$\text { Volume of a cylinder }=\pi r^{2} h$

Where π = 3.14 , r is the radius and h is the height

Now the ratio of their heights and radii is 2:3 .i.e

$\frac{\mathrm{r}}{R}=\frac{\mathrm{h}}{H}=\frac{2}{3}$

Ratio for the volumes of two cylinders

$\frac{\text {Volume of cylinder } 1}{\text {Volume of cylinder } 2}=\frac{\pi r^{2} h}{\pi R^{2} H}$

Cancelling the common terms, we get

$\frac{\text {Volume of cylinder } 1}{\text {Volume of cylinder } 2}=\left(\frac{\mathrm{r}}{R}\right)^{2} \times\left(\frac{\mathrm{h}}{\mathrm{H}}\right)$

Substituting we get,

$\frac{\text {Volume of cylinder } 1}{\text {Volume of cylinder } 2}=\left(\frac{2}{3}\right)^{2} \times\left(\frac{2}{3}\right)$

$\frac{\text {Volume of cylinder } 1}{\text {Volume of cylinder } 2}=\frac{2 \times 2 \times 2}{3 \times 3 \times 3}$

$\frac{\text {Volume of cylinder } 1}{\text {Volume of cylinder } 2}=\frac{8}{27}$

Hence, the ratio of volume of two cylinders is 8 : 27

7 0

2 years ago

X -3y = -13 and 4x + 2y = 4

Illusion [34]

Answer: x=−1 and y=4

Step-by-step explanation:

5 0

2 years ago

Answer part A, B, and C. (28 points)

mart [117]

Two sides are 8 x 2 = 16 x 2 = 32 sq. in.

Two sides are 11 x 2 = 22 x 2 = 44 sq. in.

Top is 8 x 11 = 88 sq. in.

Total surface area: 32 + 44 + 88 = 164 square inches.

B) Area of a circle = PI x r^2

Area = 63.585

63.585 = PI x r^2

Using 3.14 for PI:

63.585 = 3.14 x r^2

Divide both sides by 3.14:

r^2 = 63.585 / 3.14

r^2 = 20.25

r = √20.25

radius = 4.5 inches.

Diameter = radius x 2

Diameter = 4.5 x 2 = 9 inches.

3 0

2 years ago