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3 years ago

The density of gold is 19.3 g/cm? What is the volume of a 13 g gold nugget? (Density: D=

Mathematics

1 answer:

navik [9.2K]3 years ago

6 0

Answer:

0.67 cm³

Step-by-step explanation:

Volume = mass/density

V = 13/19.3 = 0.67 cm³

Correct option

B 0.67 cm³

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valentina_108 [34]

Answer:

x + 12 = -15

x = -18

6 0

3 years ago

Factorise fully the following: a) 3x^3-9x b) 4x^2+28^3

Leokris [45]

Answer:

3 x(x^2-3)

4x(x^2+5488)

Step-by-step explanation:

3 0

3 years ago

Find the midpoint of the line segment whose endpoints are (3, 10) and (7, 8).

Stels [109]

Answer:

Option 2 is correct.

Step-by-step explanation:

Given the coordinates of lines segment (3, 10) and (7, 8). we have to find the mid-point of given line segment.

Mid-point formula states that if $(x_1,y_1)$ and $(x_2,y_2)$ are the coordinates of end points of line segment then the coordinates of mid-point are

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

∴ Coordinates of mid-point of line segment joining the points (3, 10) and (7, 8) are

$(\frac{3+7}{2},\frac{10+8}{2})=(\frac{10}{2},\frac{18}{2})=(5,9)$

Hence, option 2 is correct.

6 0

3 years ago

Read 2 more answers

I NEED HELP ASAP

Allushta [10]

Euler's formula is given by:
C + V = A + 2
Where,
C: number of faces
V: number of vertices
A: number of edges.
Clearing A we have:
A = C + V-2
Substituting values:
A = 21 + 14-2
A = 33
Answer:
the missing number is:
C.33

7 0

3 years ago

Can someone help me with this?

Tanzania [10]

Answer:

ST=8.8

SR=15.5

Step-by-step explanation:

ST is the difference between S and T.

that would be 16.3-7.5=8.8

similarly RT is the difference between S and R

That would be 7.5-(-8)=15.5.

3 0

3 years ago

Read 2 more answers