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3 years ago

14

PLZ HELP ASAP MATH ISN'T MY THING !!!@lastbenchstudent

1 answer:

dezoksy [38]3 years ago

6 0

your Answer is Option A

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The mass of the cylinder is 50000 g find the density of the cylinder to the nearest tenth

vichka [17]

Please consider the diagram of cylinder.

We have been given that the mass of the cylinder is 50000 g. We are asked to find the density of the cylinder.

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$

Let us find the volume of our given cylinder.

$V=\pi r^2 h$ , where

r = Radius,

h = Height.

We know that radius is half the diameter, so radius of given cylinder would be $\frac{28}{2}=14$ mm.

$V=\pi\cdot(14 \text{ mm})^2\cdot 30\text{ mm}$

$V=\pi\cdot 196\text{ mm}^2\cdot 30\text{ mm}$

$V=\pi\cdot 5880\text{ mm}^3$

$V=18472.5648031\text{ mm}^3$

$\text{Density}=\frac{50000\text{ g}}{18472.5648031\text{ mm}^3}$

$\text{Density}=2.7067167192510906\cdot \frac{\text{g}}{\text{ mm}^3}$

$\text{Density}\approx2.7\frac{\text{g}}{\text{ mm}^3}$

Therefore, the density of the cylinder is approximately 2.7 gram per cubic mm.

6 0

3 years ago

Find an expression which represents the sum of (-3x-4y)(−3x−4y) and (x+3y)(x+3y) in simplest terms

ella [17]

Answer:

The sum of (−3x−4y) and (x+3y) in simplest terms will be:

$\left(-3x-4y\right)+\left(x+3y\right)=-2x-y$

Step-by-step explanation:

Given

(−3x−4y)

(x+3y)

Finding the sum of (−3x−4y) and (x+3y)

$\left(-3x-4y\right)+\left(x+3y\right)$

$=-3x-4y+x+3y$

$=-3x+x-4y+3y$

$=-2x-4y+3y$

$=-2x-y$

Therefore, the sum of (−3x−4y) and (x+3y) in simplest terms will be:

$\left(-3x-4y\right)+\left(x+3y\right)=-2x-y$

8 0

3 years ago

Find the term to term rules for the sequence 2,6,18,54,164

xeze [42]

You are multiplying by 3

3 0

3 years ago

Rick has $20. He spent $10 on food, $6 on a movie ticket, and saved the rest.

Masteriza [31]

Answer:

A. $4

4/20 or 1/5

Step-by-step explanation:

4 0

3 years ago

What is the value of x in this equation?<br><br> -14 ÷ x = -7

Vilka [71]

Its 2 heres why:
-14/2=-7 since making the 2 a negative would make the answer +7

6 0

4 years ago