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3 years ago

Aluminium has a density of 2.7g/cc .The density of 15cc of Aluminium is

Mathematics

1 answer:

zysi [14]3 years ago

4 0

Answer:

Step-by-step explanation:

Density = mass/volume.

Therefore.

2.7g/cc = x/15cc

x = 2.7x 15

x = 40.5g.

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HIVING BRAINLIEST

Nostrana [21]

Answer:

A = 3x³ - 22x² + 30x - 36

Step-by-step explanation:

Area of a Rectangle: A = lw

Step 1: Define

l = 3x² - 4x + 6

w = x - 6

Step 2: Substitute and Evaluate

A = (3x² - 4x + 6)(x - 6)

A = 3x³ - 4x² + 6x - 18x² + 24x - 36

A = 3x³ - 22x² + 30x - 36

3 0

3 years ago

Read 2 more answers

Evaluate the expression 5 /6 + -3 /5

Karo-lina-s [1.5K]

Step-by-step explanation:

$\frac{7}{30}$

$\frac{5}{6} + ( - \frac{3}{5} ) \\ lcm = 30 \\ \frac{25 + ( - 18)}{30} = \frac{7}{30}$

4 0

2 years ago

Jordan spent 22% of his time doing math homework. If hw spent 11 minutes on his math homework. How many minutes did he spend on

devlian [24]

Answer:

The total minutes he spend on his homework are 50 minutes.

Step-by-step explanation:

<em>It is given that Jordan spent 22% of his time for homework on maths.</em>

<em>It is also given that he spent 11 minutes of time on maths homework.</em>

The above two statements are equal.

Let the total time for homework be "x".

Thus, the equation can be written as,

$(\frac{22}{100})(x) = 11$

$x = (\frac{100}{22})(11) = 50 minutes$

Thus the total minutes he spend on his homework are 50 minutes.

3 0

3 years ago

A cricket team has a 0.25 chance of losing

Westkost [7]

Answer:

a) 0.125

b) 0.015635

c) 0.00000095367431640625‬

Step-by-step explanation:

a) $0.25^2 = 0.125$

b) $0.25^3 = 0.015625$

c) $0.25^{10} = 0.00000095367431640625\\\\$

8 0

3 years ago

Read 2 more answers

A sample with which of these variances has a standard deviation that is greater than the variance?

rusak2 [61]

Standard deviation is simply the square root of the variance.
We need to get the square root of each variance to see whether its standard deviation is greater than its variance.
A. 0.25 ⇒ √0.25 = 0.50B. 1.75 ⇒ √1.75 = 1.32C. 2.5 ⇒ √2.5 = 1.58D. 1.5 ⇒ √1.5 = 1.22
Among the choices, only A. 0.25 has a standard deviation that is greater than the variance. The standard deviation is 0.50

6 0

3 years ago