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disa [49]
3 years ago
12

The density of copper is 9.86 g/cm^3 and its volume is 150cm^3

Mathematics
2 answers:
just olya [345]3 years ago
8 0

Answer:

The mass of the solid copper cuboid is 1.479 kg.

Step-by-step explanation:

Given density and volume of copper we have to find the mass of the solid copper cuboid in kg.

\text{The density of copper=}9.86\frac{g}{cm^3}

\text{Volume=}150 cm^3

As, Density=\frac{Mass}{Volume}

⇒ \text{mass of solid copper=}Density\times Volume=9.86\times 150=1479g

⇒ mass=1479g=\frac{1479}{1000}kg=1.479 kg

Hence, the mass of the solid copper cuboid is 1.479 kg.

hjlf3 years ago
3 0
Density=mass/volume, 9.86=mass/150, so mass=150×9.86=1479g=1.479kg.
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A parabola has a vertex at (-1,0) and opens down. What is the equation of the parabola?
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Answer:

y = - (x + 1)²

Step-by-step explanation:

Vertex form of a parabola is given by,

y = -(x - h)² + k

Where (h, k) is the ordered pair representing vertex.

(-) sign denotes that the parabola is opening downwards.

If the coordinates of the given parabola is (-1, 0)

Equation of the parabola will be,

y = - (x + 1)² + 0

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Therefore, equation of the parabola will be, y = - (x + 1)²

5 0
3 years ago
A room has a maximum capacity of 396 people. How many people are allowed in the room at anytime?
Volgvan
396 very simple math
4 0
3 years ago
Please help.
Alika [10]

Answer:

250 smaller boxes

Step-by-step explanation:

Find the volume of the 2 cuboids.

Formula = Length x width x height

Big cuboid = 50 x 30 x 20 = 30000

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5 0
3 years ago
2. A sphere has surface area 16π. Find the radius of the sphere.
KiRa [710]

Answer:

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Step-by-step explanation:

Data

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Formula

V = \frac{4}{3}π r^{3}

Process

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7 0
3 years ago
A map is laid out in the standard (x,y) coordinate plane. How long, in units, is an airplane's path on the map as the airplane f
xeze [42]

Answer:

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Step-by-step explanation:

It has been given in the question that an airplane flies along a straight line from City A to City B.

Map has been laid out in the (x, y) coordinate plane and the coordinates of these cities are A(20, 14) and B(5, 10).

Distance between two points A'(x, y) and B'(x', y') is represented by the formula,

d = \sqrt{(x-x')^{2}+(y-y')^{2}}

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Therefore, distance between the points A and B is 15.52 units.

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