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babymother [125]
3 years ago
10

Does anyone know the formula for finding the area of a circles sector

Mathematics
1 answer:
NemiM [27]3 years ago
3 0
Area=(Theta/2) * r^2 This should be it, obviously Theta is your angle and you should use radiants in theory.
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Tanya's rotation maps point K(24, –15) to K'(–15, –24). Which describes the rotation? 90 degrees clockwise rotation 270 degrees
alexira [117]

Answer:

A. 90 degrees clockwise rotation

Step-by-step explanation:

Of we have a coordinate axis (x,y), if this axis is rotated 90° clock wide, the resulting coordinate of the pre-image will be the coordinate (y -x). Note that the coordinates was swapped and then the new y coordinate negated.

Given the coordinate K(24, -15). If we rotate this clockwisely, first we swap the coordinate axis to have (-15, 24)

Them we will negate the new y coordinate axis to have;

K'(-15, -24)

Therefore the correct answer is 90° clockwise rotation.

7 0
3 years ago
Read 2 more answers
Y = -12 when<br> x = -3 ,<br> find y when<br> x = -1 .
Juliette [100K]

Answer:

y=-4

Step-by-step explanation:

If y=4x

and y=-1

y=-1×4

y=-4

7 0
3 years ago
Consider parallelogram ABCD. Which of the following transformations will change the perimeter of the parallelogram?
jeka57 [31]

In geometry, transformation involves changing the position and/or size of a shape.

<em>The transformation that will change the size of ABCD is dilation.</em>

There are four transformations in geometry:

  • Translation
  • Reflection
  • Rotation
  • Dilation

Of all types of transformation, dilation will change the size of the shape,

The new shape will either be enlarged or reduced

<em>Either ways, the size of the shape will be altered.</em>

<em>When the size is altered, the perimeter will not remain the same.</em>

<em />

Hence. dilation will change the perimeter of ABCD.

Read more about transformations at:

brainly.com/question/11709244

4 0
3 years ago
2) The cost of renting a boat for one or more
ivann1987 [24]

Answer: 3f

Step-by-step explanation:

6 0
3 years ago
In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.
Stels [109]

8

Step-by-step explanation:

  • Critical Path Analysis is presented using the circle and arrow diagrams.
  • Earliest Start Time = the earliest possible time of  starting the activity
  • An arrow running between two event circles shows the activity needed to complete that task.
  • All arrows run left to right
  • Time for doing just task E = 8 hours (as shown in the figure)

7 0
4 years ago
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