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elena-s [515]
2 years ago
9

Is a rectangle a quadrilateral

Mathematics
2 answers:
ZanzabumX [31]2 years ago
4 0
Yes a rectangle is a quadrilateral. <span />
zimovet [89]2 years ago
3 0
Yes it is a quadrilateral
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Select the graph for the solution of the open sentence. Click until the correct graph appears. |x| &gt; 4
nadezda [96]

Answer:

***********o                                                         o**************

<----------(-4)--------(-2)--------(0)--------(-2)----------(4)-------------->

x>4 or x<-4

Step-by-step explanation:

You are looking for numbers that give you a distance, x, greater than 4 from 0. That wouldn't be anything between -4 and 4 because these would all give you a distance less than 4 from 0. So the answer would be to shade everything greater than 4 while also shading everything less than -4.

Here is a number line <-----|-----|-----|-----|-----|-----|-----|-----|-->

                                          -6    -4   -2    0     2     4    6    8

                                                 

Let's think about this more which of these numbers on this number line would satisfy |x|>4?

Numbers inside the numbers -4 and 4.

Or the numbers on the outside.

Let's try the inside numbers:

-2,02

|-2|>4

 2>4 is false which means -2 doesn't satisfy |x|>4

|0|>4

 0>4 is false which means 0 doesn't satisfy  |x|>4

|2|>4

 2>4 is false which means 2 doesn't satisfy  |x|>4

We could also try -4 and 4... but these will both give you a distance equal to 4 from 0.  And we are looking for greater than.

|-4|>4

 4>4 is false which mean -4 doesn't satisfy |x|>4

|4|>4

 4>4  is false which means 4 doesn't satisfy |x|>4

Now let's try the numbers on the outside:

-6,6,8

|-6|>4

 6>4 is true so -6 does satisfy |x|>4

|6|>4

 6>4 is true so 6 does satisfy |x|>4

|8|>4

 8>4 is true so 8 does satisfy |x|>4

So what I'm trying to do is convince you more that the only numbers that would satisfy |x|>4 are numbers outside the interval from -4 to 4.

So x>4 or x<-4.

On a number line the solution would look like this:

***********o                                                         o**************

<----------(-4)--------(-2)--------(0)--------(-2)----------(4)-------------->

We have holes at -4 and 4 to mean we do not include those numbers.  We would have if the inequality read |x| \ge 4.  The line underneath this inequality means to include or equals.  We do not want to include; we did not have the equal sign.   The only difference between the two solutions would be to fill the holes if you |x| \ge 4.

4 0
2 years ago
Help me find the domain and range please!
NeTakaya

Answer:

Domain: (-∞, 1]

Range: (-∞, 3]

Step-by-step explanation:

The function starts at point (1, 3) and goes to the left and down forever.

Domain: (-∞, 1]

Range: (-∞, 3]

4 0
2 years ago
Read 2 more answers
What is the solution of the equation -14+2x+3=4x-13-7x
Harman [31]

Answer: x= -2/5 or x= -0.4

combine like terms on left side and get -11+2x. then combine terms on right side and get -13-3x. add the 11 to the right side and get 2x= -2-3x

then add over the 3x and get 5x=-2

and finally divide the -2 from 5x and get -2/5

4 0
2 years ago
F(x)=4(x-2)^2-1...looking for x and y int
yan [13]
Y=4(0-2)^2-1
y=15
(0,15)
plug 0 for x
0=4(x-2)^2-1
(5/2,0) and (3/2,0)
plug 0 for y
8 0
3 years ago
Help with this question!!! ASAP
sergij07 [2.7K]

Answer:Im pretty sure it's quadratic

Step-by-step explanation:

The reason is because if you plot these on a graph they would make a "U" shape witch mean it's a parabola if it were exponential it would not make a "u" shape because it would keep going up and never come back down at a exponential rate.

3 0
2 years ago
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