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ryzh [129]
3 years ago
6

Which system of equations does not have a real solution

Mathematics
1 answer:
Aloiza [94]3 years ago
5 0

Answer:

the correct answer is y = x 2 + 3x - 5 and x + y = -10

Step-by-step explanation:

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I put the image at the bottom.Help me on this please
jenyasd209 [6]

Answer: 2/6 or 1/3

Step-by-step explanation:

6 0
3 years ago
Three out of every 10 students in Mr. Chan's class brings their lunch to school. Write this ratio as a percent
Katarina [22]
The answer would be 30%.I think


4 0
3 years ago
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10 people have pink cups. then 5 of those 10 people got red cups and threw the pink cups away. how many people have pink cups?⇒⇒
Alexandra [31]

Answer:

5 people have pink cups

Step-by-step explanation:

10-5=5

:D

8 0
3 years ago
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The solution to the equation x+5= -9 is​
IRINA_888 [86]

Answer:

x = -14

Step-by-step explanation:

-9 -5 = -14

6 0
3 years ago
A triangle with vertices of (0,0), (0,6) and (5,0) is plotted on the coordinate plane. the
abruzzese [7]

Answer:

  50π ≈ 157.08 cubic units

Step-by-step explanation:

The volume of revolution of a plane figure is the product of the area of the figure and the length of the path of revolution of the centroid of that area. The centroid of a triangle is 1/3 the distance from each side to the opposite vertex. (It is the intersection of medians.)

__

<h3>length of centroid path</h3>

One side of this triangle is the axis of revolution. Then the radius to the centroid is 1/3 the x-dimension of the triangle, so is 5/3. Then the circumference of the circle along which the centroid is revolved is ...

  C = 2πr

  C = 2π(5/3) = 10π/3 . . . units

<h3>triangle area</h3>

The area of the triangle is found using the formula ...

  A = 1/2bh

  A = 1/2(5)(6) = 15 . . . square units

<h3>volume</h3>

The volume is the product of the area and the path length:

  V = AC

  V = (15)(10π/3) = 50π . . . cubic units

The volume of the solid is 50π ≈ 157.08 cubic units.

_____

<em>Additional comment</em>

In the attached figure, the point labeled D is the centroid of the triangle. The label has no significance other than being the next after A, B, C were used to label the vertices.

The volume of revolution can also be found using integration and "shell" or "disc" differential volumes. The result is the same.

3 0
2 years ago
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