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Natalka [10]
3 years ago
8

Find the number of real solutions of each equation using the discriminant.

Mathematics
1 answer:
lianna [129]3 years ago
8 0

Answer: 1: x^2 + 25 = 0 x=5

2: x^2 - 11x + 28 = 0 x=7 i think

3: x^2 + 8x + 16 = 0 x=-4

Step-by-step explanation:

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Please someone Help me 100 points
Sedaia [141]

Answer:

                     distance            rate          time

trip to park       24                   14               25

return              30                     27              25

the jogger's speed is  24          

Step-by-step explanation:

3 0
2 years ago
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Which undefined terms are needed to define parallel lines quizlet?
HACTEHA [7]

The correct answer is C. Coplanar, line.

The undefined terms are needed to define parallel lines are coplanar and line.

<h3>What are parallel lines?</h3>

Two lines in a single plane that are equally spaced apart and never cross each other are said to be parallel lines in geometry. All horizontal and vertical shapes are possible.

Examples of parallel lines can be found everywhere, including zebra crossings, rows of notebooks, and the nearby railroad tracks.

Some characteristics of parallel lines are-

  • They are usually parallel straight lines that are spaced equally apart.
  • These lines are coplanar.
  • No regardless how far you extend these in any direction, they never come together.
  • A transversal line will create four angles at each of its two sites of intersection with two parallel lines if it does so.

To know more about parallel lines, here

brainly.com/question/4954460

#SPJ4

The complete question is-

Which undefined terms are needed to define parallel lines?

A. Point, line

B. Line, plane

C. Coplanar, line

D. Point, coplanar

5 0
2 years ago
Consider the sets below.
Pepsi [2]

Answer:

B ⊂ A

Step-by-step explanation:

We know that:

A {x|x is a polygon}

So set A is the set of all polygons.

B {x|x is a triangle}

Set B is the set of all triangles.

First, a polygon is a plane geometrical figure made of a finite sequence of straight segments.

For example, a triangle is a polygon, a rectangle is a polygon, etc.

Then, all triangles are polygons, but not all polygons are triangles.

So we can conclude that the whole set B is included in the set A.

Then the correct notation would be:

B ⊂ A

7 0
3 years ago
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The Ecology Club is electing officers for the new school year. The club will elect a president, vice-president, secretary and tr
Studentka2010 [4]

Answer:

Step-by-step explanation:

In how many ways can the club select its new officers

Need to fill 4 positions

24P4 = 24!/(24-4)! = 24!/20! = 21*22*23*24 = 255,024

8 0
3 years ago
Which best describes the range of the function f(x) = 2(3)^x?
viva [34]

Answer:

A

Step-by-step explanation:

If im wrong please correct me.

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3 years ago
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