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Alja [10]
3 years ago
15

Elena said the equation 9x+15=3x+15 has no solutions because 9x is greater than 3x. Do you agree with Elena? Explain your reason

ing.
Mathematics
2 answers:
baherus [9]3 years ago
8 0

Answer:

Disagree

Step-by-step explanation:

You can solve this problem by doing as follows:

9x+15=3x+15

-3x        -3x

=

6x+15=15

-15        -15

=

6x=0

Although x=0, x=0 is still a solution to the problem.

erik [133]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

any number times nine will be greater if you times the same number by three,

ex:

9(5)+15=60

3(5)+15=30

9x+15 > 3x+15

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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
1 year ago
Help anyone would gladly appreciate it
Nutka1998 [239]
(2,-2) there you go
6 0
2 years ago
in PQR the obtuse angle is 105 and the shorter sides measure 4 and 7 units Rounded to the nearest tenth what is the area of tria
cricket20 [7]

Answer:

the answer is 13.5

Step-by-step explanation:

A=105

B=4

C=7

so you just plug in using the trigonometric formula for area which in this case would be

1/2(4)(7)sin(105)

then you just type that into a graphing calculator (make sure its set to degrees) then you get 13.52 which would be 13.5 rounded.

8 0
2 years ago
Read 2 more answers
2. Choose the graph that shows the solution of the inequality on the number line
horsena [70]

Answer:

Number line 3 also known as [C]

Step-by-step explanation:

<em>Given that:</em>

<em>c ≤ </em>-1

Knowing that:

≤  = Less than or equal to

Now substitute into the equation:

C less than or equal to -1

Thus, it going left on a number line.

The only number line with left is [A] and [C]

Since ≤  = Less than or equal to -1

then, it including -1

also known as a closed circle means the number is included and an open circle means it is not.

Hence, it closed circle.

Thus, the answer is [C]

<u><em>Kavinsky</em></u>

4 0
1 year ago
What is the volume of 10 2 in 5.5in
svetlana [45]

Answer:

  110 in³

Step-by-step explanation:

The volume of a rectangular prism is the product of its dimensions:

  V = LWH

  V = (10 in)(2 in)(5.5 in) = 110 in³

5 0
2 years ago
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