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3 years ago

Can someone help me with problem 7? please!!!!!!!!!!!!PLEASE!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Sliva [168]3 years ago

4 0

Answer:

You’ve got this!!

Step-by-step explanation:

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The base of a rectangular tank measures 10 ft by 20 ft. The tank is 16 ft tall, and its top is 10 ft below ground level. The tan

sashaice [31]

Answer:

Step-by-step explanation:

Given a rectangular tank with dimension (10ft by 20ft by 16ft)

Then the volume of the tank is

Volume =length × breadth ×height

Volume=10×20×16=3200ft³

V=3200ft³

Then,

∆F= weight density × volume

∆F= 62.4×3200

∆F= 199,680 lb

Then,

Let the 0-point on the x-axis be at the bottom of the tank, so the level of the water ranges from x = 0 to x = 16ft. (It would just as well to let 0 be ground level and let x range from x = −26ft to x − 0.) Then a slice of water at level x is raised (26− x)ft

Then ∆x=(26-x)ft

Work is given as

W= -∫F∆xdx. From 0 to 16

W= -∫199,680(26-x)dx From 0 to 16

W=-199,680∫26-x dx From 0 to 16

W=-199,680 (26x-x²/2). From 0 to 16

W=-199,680(26×16-0.5×16² -0-0)

W=-199,680(288)

W=-57,507,840J

The work done to empty the tank is 57,507,840J

8 0

4 years ago

Read 2 more answers

Equations and functions

Brilliant_brown [7]

Answer:

first one

Step-by-step explanation:

Absolute value functions usually have that shape. The only absolute value function out of all of the answer choices is the first one.

6 0

3 years ago

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Evaluate and answer in standard form:<br><br>4^2/3^2

Semenov [28]

the answer is : 1.7777

6 0

3 years ago

Katrina is shopping for berries that cost $2.19 per pound. She has 4.5 pounds of raspberries and 3.25 pounds of blueberries in h

slega [8]

2.19 2.19 9.855 + 7.1175 = (approximately) <u>$16.97</u>
x 4.5 x 3.25
----------- ----------
9. 855 7.1175
I hope this helps!!

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3 years ago

Read 2 more answers

HELP PLZ ANYONE??? I AM VERY STUCK ASAP!!

Katena32 [7]

Answer:

The answer is A

Step-by-step explanation:

When you multiple the numerators across you get 39,283.2 not 39, 832. What this math problem is, is Dimensional Analysis. Its converting one unit of measurement to another

Another example:

Look at the attachment below.

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3 years ago