All categories

3 years ago

Point K(–2, 1) is rotated 90° about the origin. What are the coordinates of K′?

Mathematics

1 answer:

yarga [219]3 years ago

4 0

Answer:

The co-ordinates of K¹( -1 , -2 )

Step-by-step explanation:

Explanation:-

Given that the point K( -2,1 )

when rotating a point 90° about the origin

Given point A(x,y) transformation to A¹( - y,x )

Given point K(-2,1) → K¹ ( -(1) , -2)

Final answer:-

The co-ordinates of K¹( -1 , -2 )

You might be interested in

The circumference is 12 what is the radius

alexgriva [62]

C = 2πR ⇒ R = C/2π = 12/2π = 6/π ≈ 6/3,14 = 600/314 ≈ 1.91

8 0

4 years ago

What is 1 standard deviation on a

PilotLPTM [1.2K]

Answer:

D. The distance from the mean to an inflection point

Step-by-step explanation:

We rarely encounter the actual formula for the normal PDF. It is ...

$p(x)=\dfrac{1}{\sqrt{2\pi}}e^{-\dfrac{x^2}{2}}$

In fact, the inflection points are at x = ±1, where the curve changes from being concave downward to concave upward.

So, one standard deviation is the distance from the mean to an inflection point.

3 0

3 years ago

What is 38/4 as a mixed number

aliya0001 [1]

The answer is 9 1/2

3 0

3 years ago

Read 2 more answers

From 145 pounds to 132 pounds

Mariana [72]

From 145 pounds to 132 pounds

145 - 132 = 13

13 pounds

Check:-
132 + 13 = 145
Correct!

13 pounds

4 0

3 years ago

Simplify (Remember to simplify means to write an equivalent expression that uses each variable on')

DaniilM [7]

Answer:

A) $x^{3} y^{4}$

B) $-\frac{5x^{2} }{y}$

C) $9m^{4}n^{4}$

D) $\frac{1}{x^{3} }$

Step-by-step explanation:

Hope this helps.

6 0

3 years ago