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2 years ago

Don't understand. Help please?

Mathematics

1 answer:

Anna71 [15]2 years ago

4 0

Answer:

Length is 138 ft, area is 412 ft

Step-by-step explanation:

The length is determined by the perimeter, so add both side of the perimeter together, and you have your length. Area is determined by perimeter + Length, to add both sides of perimeter and length and you get 412 ft.

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A gas station stores its gasoline in a tank under the ground. The tank is a cylinder lying horizontally on its side. (In other w

hoa [83]

Answer:

64,717.36 Joule is the total amount of work needed to pump the gasoline out of the tank.

Step-by-step explanation:

Volume of cylinder = V

Radius of cylinder = r = 0.5 m

Height of the cylinder = 5 m

Volume of cylinder = $\pi r^2h$

$V=3.14\times (0.5 m)^2\times 5 =3.925 m^3$

Mass of gasoline = m

Density of gasoline = d = $673 kg/m^3$

$m=d\times V=673 kg/m^3\times 3.925 m^3=2,641.525 kg$

Work done to pump the gasoline out of the tank W

Acceleration due to gravity = g $.8 m/s^2$

The center of gravity of fuel in fully filled tank will be centre so, the value of h = 2 m + 0.5 m = 2.5 m

$W =m\times g\times h$

$W=2,641.525 kg\times 9.8 m/s^2\times 2.5 m=64,717.36 J$

64,717.36 Joule is the total amount of work needed to pump the gasoline out of the tank.

6 0

2 years ago

X + y = 6<br> 2x + y = 4<br> Solve the system of equations.

Debora [2.8K]

(X,Y) = (-2,8) this the answer

8 0

2 years ago

Read 2 more answers

Evaluate this pls quiick i have 18 min left online exams help<br><br> -0.0004 x 0.02

lions [1.4K]

Given:

The expression is:

$0.0004\times 0.02$

To find:

The value of the given expression.

Solution:

We have,

$0.0004\times 0.02$

It can be written as:

$=\dfrac{4}{10000}\times \dfrac{2}{100}$

$=\dfrac{8}{1000000}$

$=0.000008$

Therefore, the value of the given expression is 0.000008.

3 0

3 years ago

Will the product be more or less than 9 8/9

solniwko [45]

It would be less because when you multiply something by 1/2 you are basically dividing it by 2, finding half. So when you multiply 9 8/9 by 1/2 your product would be less than 9 8/9

5 0

2 years ago

Read 2 more answers

Multiply. Write your answer as a fraction in simplest form. −1/4×(−4/3)=

Sophie [7]

Answer:

$\frac{1}{3}$