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Veronika [31]
3 years ago
15

What is the next number in the sequence -11,-17,-15,-21

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0

-19 is the next number, why?

Because the order goes by -6 up, -2 down.

-11 (-6) -17 (-2) -15 (-6) -21 (-2) -19

Hope this helped!

Plz mark brainliest!

You might be interested in
Part
goldfiish [28.3K]

When a shape is rotated, it must be rotated around a point.

<em>To determine the location of the new triangle, Sonja must subtract (5,-1) from the coordinates of the original triangle, before rotating by </em>90^o<em>.</em>

<em />

From the question, we have:

C = (5,-1) --- the center of rotation

Let the vertices of the triangle be (x,y).

First, she must subtract the coordinates of the center of rotation from the vertices of the triangle.

This gives:

(x,y) \to (x - 5, y + 1)

Then the vertices are rotated by 90^o

<u />

<u>The rule of </u>90^o<u> rotation is:</u>

(x,y) \to (-y,x)

So, we have:

(x - 5,y + 1) \to (-y - 1,x - 5)

From the attachment, the coordinates of the triangle are: (0,2), (0,5) and (4,2)

After rotation, the coordinates are calculated as follows:

(0,2) \to (-2-1,0-5) \to (-3,-5)

(0,5) \to (-5-1,0-5) \to (-6,-5)

(4,2) \to (-2-1,4-5) \to (-3,-1)

Hence, the coordinates are: (-3,-5), (-6,-5) and (-3,-1)

Read more about rotations at:

brainly.com/question/1571997

3 0
3 years ago
Please Help!!!!! I have a math test and I am not good at this stuff. and here is a hint: don't use the 10.
Talja [164]
A. 12•8=96, 96/2=48, 48•4=192, 12•12=144, 192+144=336
5 0
3 years ago
Please help me :). I'll give brainiest
Dennis_Churaev [7]

Answer:

axis of symmetry: x=3, vertex: (3,23)

Step-by-step explanation:

-\frac{b}{2a}=-\frac{12}{-4}=3

axis of symmetry(x-value of the vertex): x=3

input this value into the function to get the vertex

-2(3)^{2}+12(3)+5

-18+36+5

18+5

23 is the y-value of the vertex

(3,23)

plz mark me brainliest. :)

4 0
3 years ago
Is 6.31 repeating rational or irrational​
leonid [27]
6.31 is a rational number.
4 0
2 years ago
3.6+4+0.39 help me plz i need it
arsen [322]

3.6 + 4 + 0.39  = 7.99
5 0
3 years ago
Read 2 more answers
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