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shtirl [24]
3 years ago
13

!00 points HELP!!!!! Missy’s rotation maps point K(17, –12) to K’(12, 17). Which describes the rotation?

Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

90° counterclockwise rotation

Plot the situation


ohaa [14]3 years ago
8 0

Answer:

90° counterclockwise rotation

Step-by-step explanation:

A 90° counterclockwise rotation maps every point (x, y) to (-y, x).

K(17, -12) is mapped to K'(12, 17).  The x- and y-coordinates are switched and the y-coordinate is negated (before being switched).  This means

(x,y)→(-y,x).

This is a 90° counterclockwise rotation.

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Which statement is true about the purpose of trend lines in scatterplots? A trend line must pass through the largest data point.
Eddi Din [679]

Answer:

a trend line can be used to make predictions in real-world situations (the third option)

Explanation:

the first & second options are wrong because it is not a requirement for a trend line to pass through any given data point.

the fourth option is wrong because a trend line shows the general upward/downward trend of the data, and may not necessarily touch all of the data points.

the third option is correct because a trend line helps to roughly estimate the trend (hence the name) of the graph, which allows us to make predictions in real-world situations.

i hope this helps! :D

3 0
3 years ago
Read 2 more answers
I NEED HELP PLEASEE ASAP
tiny-mole [99]

Answer:

-5 and initial value is -1

Step-by-step explanation:

Slope= y2-y1/x-x1

-11-(-1)/2-0

-10/2

-5

Initial value is y-intercept where x is 0 (0,y)

so

(0,-1) is starting point

5 0
3 years ago
How many sides does a regular polygon have if it’s central angle is 35 degrees?
umka21 [38]

Answer:

it's not a regular polygon

Step-by-step explanation:

a central angle of a regular polygon is 360/n

360/n=35

n=360/35=10.28

it's not a regular polygon

8 0
3 years ago
A freight train departs from one train station to its destination at a constant speed. Suppose the distance the train is from th
barxatty [35]

Answer:

108 miles

Step-by-step explanation:

Given the points (0.5, 135) and (2,81)

Diatnce between two points :

D = √(x2 - x1)² + (y2 - y1)²

X1 = 0.5 ; y1 = 135 ; x2 = 2 ; y2 = 81

D = √(2^2 - 0.5^2) + (81^2 - 135^2)

D = √(4 - 0.25) + (6561 - 18225)

D = √3.75 −11664

D = 107.98263

D = 108 miles

6 0
3 years ago
A figure has the following coordinates x (0,1).Y (4,6) z (-5,-1). If the figure is translates 4 units left and 3 units up, what
iVinArrow [24]

Answer:

z' (-9,2)

Step-by-step explanation:

I recomend using desmos to show the relashinship

If you don't want to, thwn do this

Preimage(0-4,1+3),(4-4,6+3),(-5-4,-1+3)

Since we are finding z, we only use the final cordinates

z'=(-9,2)

8 0
2 years ago
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