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patriot [66]
4 years ago
9

A solid pyramid of height 40 cm with a square base of sides 30 cm each is put into a tank of sides 40 cm each. the tank is then

filled with water. if the pyramid is removed, find the depth of water in the tank.
Mathematics
1 answer:
viktelen [127]4 years ago
6 0
So you have to find the volume of the tank, and the volume of the pyramid. Then subtract the volume of the pyramid from that out of the tank. The formula for pyramid is v = lwh/3. For the tank (which is a cube in this case) It's any given side cubed.

40*30*30 = 3600/3=1200cm cubed
40^3 = 6400cm cubed

6400-1200=5200cm^3 of water

(If you don't get this answer then I may have made a calculation error as I did this quickly in my head, just check my answer and yours to see)
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Answer:

Slope = 7.2 g/mL

Step-by-step explanation:

Density = mass/volume

Density is also the slope of the relationship between mass and volume.

When a graph between mass and volume is plotted, its slope gives the density of the object.

If the density is 7.2 g/mL, it would mean that the slope is 7.2 g/mL. Hence, this is the required solution.

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3 years ago
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22. Solve using the principles together. Check your answer.
photoshop1234 [79]

5x - 3 = 11 + 12x

---Subtract 5x from both sides

-3 = 11 + 7x

---Subtract 11 from both sides

-14 = 7x

---Divide both sides by 7 to leave x by itself

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Answer: x = -2

Answer Choice: A, -2

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2 years ago
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A. Write as many ratios as you can using two side<br> lengths from ABC.
iragen [17]

Answer:

Ratio is 2:1

Step-by-step explanation:

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2 years ago
Find the coordinates of x−intercept and of y−intercept of the line. y=−3x−9
My name is Ann [436]

Answer:

(-3, 0), (0, -9)

Step-by-step explanation:

x-intercept:  Let y = 0 and find x:  0 = -3x - 9), or 3x = -9.  Then x = -3, and the x-intercept is (-3, 0).

y-intercept.  Let x = 0 and find y.  y = -3(0) - 9 = -9.  The y-intercept is (0, -9).

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3 years ago
What is the length of line segment s a? 1.89 ft 2.43 ft 3 ft 7 ft
Slav-nsk [51]

The ratio of the sides will be constant. Then the value of the length of line segment SA will be 3 ft.

The missing diagram is given below.

<h3>What is the triangle?</h3>

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The triangles ΔABC and ΔSBT are the similar triangles.

Then the ratio of the sides will be constant.

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Then the value of the length of line segment SA will be 3 ft.

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ1

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2 years ago
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