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3 years ago

I need all the points marked

Mathematics

1 answer:

tatuchka [14]3 years ago

6 0

How to write the co-ordinates

If a point is x units away from origin horizontally and y units away from origin vertically then the co-ordinates are written in the form of (x-co-ordinates,y-coordinates)

Now write

D(2,0)
C(0,7)
B(-8,-4)
A(-6,7)

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What is the average of -2.6, 1.8, -3.3, -2.7, 2.2 ? I dont understand this.

olya-2409 [2.1K]

Average = Mean

To find the mean, add up the numbers and divide it by how many numbers there are.

So, $-2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6$

There are 5 numbers in total.

$-4.6 \div 5=-0.92$

To do these types of division, ignore the decimal and add a 0 at the end.

So we can do:
$-460\div5=-92$

And put back the decimal.
Hope this helps :)

4 0

3 years ago

Simplify −2i sqrt −12 please help!

defon

$\bf \textit{recall that }i^2=-1\\\\
-------------------------------\\\\
-2i\sqrt{-12}\quad 
\begin{cases}
12=2\cdot 2\cdot 3\\
\qquad 2^2\cdot 3
\end{cases}\implies -2i\sqrt{-1\cdot 2^2\cdot 3}
\\\\\\
-2i\sqrt{-1}\cdot \sqrt{2^2}\cdot \sqrt{3}\implies -2i\cdot i\cdot 2\cdot \sqrt{3}\implies -4i^2\sqrt{3}
\\\\\\
-4(-1)\sqrt{3}\implies 4\sqrt{3}$

7 0

3 years ago

What is the value of h(2)? -2 -1 0 3

Nesterboy [21]

Answer:

Step-by-step explanation:

all the question is asking is

if x is 2 then what is y

the line on the left is downward facing line which ends at

(2,0) <- where is x is 2 and y is 0

the upward facing line on the right does start at (2,3)

but the dot there is a

hollow dot

hollow dot represents excluded value

4 0

2 years ago

Please help me out!!!!!!!!!!

SOVA2 [1]

4(3)^2-3(3)+7
36-9+7
34
g(3)=34

8 0

3 years ago

Which three lengths CANNOT be the lengths of the sides of a triangle

kogti [31]

Answer:

I believe 21 cm

Step-by-step explanation:

4 0

3 years ago