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Molodets [167]
3 years ago
14

Match the descriptions with their correct solid name.

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0

Answer:

1-sphere

2-Triangular pyramid

3-cube

4-Triangular prism

5-Cylinder

6-Rectangular pyramid

7-Cone

8-Rectangular prism

Step-by-step explanation:

We have to match description with their correct solid name.

1.3 D figure where all points are the same distance from the center is called sphere.

1-sphere

2.3 D figure made of all triangles.That figure is called triangular pyramid.

2-Triangular pyramid

3.3 D figure with six congruent squares is called cube.

3-cube

4.3 D figure with two triangle bases and rectangles for the rest of its faces.That figure is called triangular prism.

4-Triangular prism

5.3 D figure with circular bases is called cylinder.

5-Cylinder

6.3 D figure with a rectangle as a base and triangle for the rest of its bases.

That figure is called rectangular pyramid.

6-Rectangular pyramid

7.3 D figure with one circular base and one vertex.That figure is called cone.

7-Cone

8.3 D figure with rectangles for all of its faces.That figure is called rectangular prism or cuboid.

8-Rectangular prism

gregori [183]3 years ago
6 0
Here are all the correct answers in the order they are asked.

1. Sphere - all the points from the center create a rounded space
2. Triangular pyramid - A triangular base and three triangular lateral faces
3. Cube all six faces are squares
4. Triangular prism - two triangular bases and four rectangular lateral faces
5. Cylinder two circular bases and a rounded lateral face
6. Rectangular pyramid -rectangular base and four triangular lateral faces
7. Cone- One circular base 1 rounded space that comes to a point.
8. Rectangular prism - 6 rectangular faces
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3 years ago
Solve 5^2x+1-5^2x=150 with steps
tiny-mole [99]

Answer:

x = 2.98

Step-by-step explanation:

5^2x + 1 - 5^2x = 150

25x + 1 + 25x = 150

50x + 1 = 150

50x = 149

x = 2.98

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5^2(2.98) + 1 - 5^2(2.98) = ?

25(2.98) + 1 + 25(2.98) = ?

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3 years ago
Water is leaking out of an inverted conical tank at a rate of 6800.0 cubic centimeters per min at the same time that water is be
m_a_m_a [10]

Answer:

6.82 mt^3/min

Step-by-step explanation:

By congruence of triangles, the radius r of the cone base when its height is 1 meter satisfies the relation

r/1 = 2.5/6

(See picture attached)

So, r = 0.4166 meters when the water is 1 meter high.

The volume of a cone with radius of the base = R is given by

V=\frac{\pi R^2h}{3}

So, the volume of water when it is 1 meter high is

V=\frac{\pi* 0.(4166)^2}{3}=0.1817\;mt^3

One minute later, the height of the water is 1 meter + 30 centimeters = 1.30 mt

The radius now satisfies

r/1.3 = 2.5/6

and now the radius of the base is

r = 0.5416 mt

and the new volume of water is 0.3071\;mt^3

So, the water is raising at a speed of

0.3071-0.1871 = 0.12 mt^3/min

This speed equals the difference between the water being pumped and the water leaking,

So,  

<em>0.12 = Speed of water being pumped -6.8  </em>

and

Speed of water being pumped = 6.8+0.12 = 6.82 mt^3/min

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3 years ago
Find the slope and Y interact from the following graph of liner liner equation
aleksandr82 [10.1K]

Answer:

A

Step-by-step explanation:

slope is rise over run 4/1 so the slope is 4 and intercept is 3.

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3 years ago
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