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densk [106]
3 years ago
13

If the Density of an object is 5.2 g/cm3, and its volume is 3.7 cm3, what is its mass?

Mathematics
2 answers:
Anastaziya [24]3 years ago
5 0
I think that it is the second one but if I am wrong I am so sorry.
madam [21]3 years ago
4 0
Density times volume=mass

so

given that the density is 5.2g /cm^3 and volume is 3.7cm^3
mass=5.2g/cm^3 times 3.7cm^3=19.24g

it is closest to 17g
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Can someone explain this to me.
almond37 [142]

Answer:

option D

3*(\sqrt{x}+\sqrt{x-3})

Step-by-step explanation:

Given in the question an expression,

\frac{9}{\sqrt{x} -\sqrt{x-3}}

Step 1

Divide and multiple by \sqrt{x}+\sqrt{x-3} to remove radical sign from denominator.

\frac{9}{\sqrt{x} -\sqrt{x-3}}*\frac{\sqrt{x} +\sqrt{x-3}}{\sqrt{x} +\sqrt{x-3}}

Step 2

Apply a² - b² = (a+b)(a-b)

\frac{9*\sqrt{x}+\sqrt{x-3}}{\sqrt{x^{2}}-\sqrt{(x-3)^{2}}}}

Step 3

\frac{9*\sqrt{x}+\sqrt{x-3}}{x-x+3}

Step 4

\frac{9*\sqrt{x}+\sqrt{x-3}}{3}

Step 5

3*(\sqrt{x}+\sqrt{x-3})

7 0
3 years ago
If A( 1,8) B(2,6) and C(4,2) are three points, show that AC=3AB​
faust18 [17]

Answer:

see explanation

Step-by-step explanation:

Calculate AC and AB using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = A(1,8) and (x₂, y₂ ) = C(4,2)

AC = \sqrt{(4-1)^2+(2-8)^2}

      = \sqrt{3^2+(-6)^2}

       = \sqrt{9+36}

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Repeat with

(x₁, y₁ ) = A(1, 8) and (x₂, y₂ ) = B(2, 6)

AB = \sqrt{(2-1)^2+(6-8)^2}

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       = \sqrt{1+4}

       = \sqrt{5}

So AB = \sqrt{5} and AC = 3\sqrt{5}

Thus

AC = 3AB

5 0
3 years ago
Read 2 more answers
25 POINTS
dimulka [17.4K]

a + (n - 1)d

a is 46, the initial.

n is the nth term, or in this case 12

d is difference, which is 4

plug this info in....

46+ (12-1)4

=90

5 0
4 years ago
Read 2 more answers
Think of 5 positive integers that have a
Rudiy27

Answer:

Mode of 3 median of 6, mean of 6, range of 8

Step-by-step explanation:

3, 3, 6, 7, 11

6 0
2 years ago
Please help I need it I’ll give Brainly please
Lapatulllka [165]

Answer:

35.7

Step-by-step explanation:

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3 0
3 years ago
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