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zmey [24]
3 years ago
7

Find the coordinates of n after a 90 degrees clockwise rotation around the origin

Mathematics
1 answer:
Ket [755]3 years ago
5 0

Answer:

270 degrees

Step-by-step explanation:

If you want a positive number, you can say that the origin is 360 degrees. Then, being it's moving clockwise, subtract 90 degrees from 360 degrees. That will give you 270 degrees.

If you want a negative answer, you could simply say that the origin is 0 and subtract 90 from that giving you -90.

Odds are you  should go with 270.

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What is the equation for passing through (-2,2) and (5,3)
Reil [10]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~{{ -2}} &,&{{ 2}}~) 
%  (c,d)
&&(~{{ 5}} &,&{{ 3}}~)
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{3-2}{5-(-2)}\implies \cfrac{3-2}{5+2}\implies \cfrac{1}{7}

\bf \stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-2=\cfrac{1}{7}[x-(-2)]
\implies 
y-2=\cfrac{1}{7}(x+2)
\\\\\\
y-2=\cfrac{1}{7}x+\cfrac{2}{7}\implies y=\cfrac{1}{7}x+\cfrac{2}{7}+2\implies y=\cfrac{1}{7}x+\cfrac{16}{7}
5 0
3 years ago
Am supposed to use the power of tens to estimate this product<br> 52.6 ×9
zepelin [54]

Answer:

no

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP MEEEE I NEED THE ANSWER AHH
ddd [48]

answer:

0

step by step explanation:

3 0
3 years ago
Read 2 more answers
Harry had $32. He spent all the money buying three notebooks for x dollars each and four packs of index cards for y dollars each
sergiy2304 [10]

Answer:

x = notebooks

y = indexboks

3x+4y=32 ( here is spent all money so I add 32 here )

5x+5y=50

by elemination method

3x+4y=32×5

5x+5y=50×4 ( here I'm going to eliminate y )

15 x+20y= 160

20x+20y= 200

- - = -

____________

-5x = -40

x = - 40 / -5

x = 8

here - × - = + so iam taking positive 8

now substitute the value of x in any equation

3×8+4y = 32

24 + 4y = 32

4y = 32-24

y = 8 / 4

y = 2

CHECKING

SUBSTITUTE BOTH VALUES IN ANY EQUATION

5×8+5×2 = 50

40 + 10 = 50

50 = 50

I SUBSTITUTE IN 2ND EQUATION

3 0
3 years ago
WILL MARK BRAINLIEST - 75 POINTS!!
Tpy6a [65]

Answer:

(10x-1)^2

Step-by-step explanation:

Here we are going to apply the rule of "Square of the difference". The rule is as given below

(a-b)^2=a^2-2 \times a \times b + b^2   ---------(A)

Now we have our original polynomial as

100x^2-20x+1

Which can be re written as

(10x)^2-2 \times 10x \times 1 + 1^2  ---------------(B)

Hence comparing it with (A)

a=10x

b=1

Applying the rule on (B)

(10x)^{2}-2 \times 10x \times 1 + 1^2 = (10x-1)^2

Hence our answer is

(10x-1)^2

6 0
3 years ago
Read 2 more answers
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