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nydimaria [60]
3 years ago
14

Fiind the value of x between 0 and 360 for question 5sin 2x=7cos2x​

Mathematics
1 answer:
Degger [83]3 years ago
6 0

Answer:

x=pi*n/2+1/2arctan(7/5)

Step-by-step explanation:

5sin(2x)=7cos(2x)

5tan(2x)=7/5

2x=pi*n+arctan(7/5)

x=pi*n/2+1/2arctan(7/5) for n e Z

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Measure
yaroslaw [1]

Answer:Measure

Angle

48°

А

B

(6. - 28)

(2x)

С

Find the value of x. Then find the measures of angles B and C

Enter your answers in the boxes.

mZB=

O

mZC =

o

Step-by-step explanation:

7 0
3 years ago
Three times a certain number added to its square is 10. Find the number(s).
iVinArrow [24]

Answer:

2

Step-by-step explanation:

2 squared is 4. 3 x 2 = 6. 6+4=10

7 0
3 years ago
С
lana66690 [7]

In a rigid transformation, the shape of the image remains the same as the preimage

The correct options are;

Rotation; a → b

Translation: a → d

Reflection over a horizontal line: c → e

Reflection over a vertical line: g → f

Rotation then reflection: a → h

Rotation then translation: e → j

The reasons why the above selections are correct are as follows;

  • Rotation;  Figure <em>a</em> is rotated about a common center to figure <em>b</em> to move from <em>a</em> to <em>b</em>
  • Translation: Figure <em>a</em> can be translated towards the left and then upwards to reach figure <em>b</em>
  • Reflection over a horizontal line: A reflection over a horizontal line is similar to a reflection across the x-axis, therefore an example of a reflection over horizontal line is c → e
  • Reflection over a vertical line: A reflection over a vertical line will turn a left pointing triangle to a right pointing triangle as shown in g → e
  • Rotation then reflection:  The preimage is first rotated about an axis before it is then reflected as seen in the clockwise  rotation figure <em>a</em> about its axis, followed by a reflection across a vertical axis to figure <em>h</em>
  • Rotation then translation: The rotation and translation composite transformation can be seen in figure <em>e </em>which is rotated to point left, and then translated into the position of figure <em>j</em>

<em />

Learn more about rigid transformations here:

brainly.com/question/14301866

8 0
2 years ago
I need to know the answer!!
puteri [66]
Next time, please begin with a question of your own, and share whatever work you have done.

Look at the illustration.  You want to reflect point J in the origin.  Point J's coordinates are (0,3).  If you reflect this point in the origin, you'll get the new point J' as (0,-3).

Next, reflect point I in the origin.  The original point I is (-4,4).  Reflecting this in the origin takes you from Quadrant 2 to Quadrant 4.  The coordinates of the new point I' are (4,-4).  Spend enuf time with this so that it becomes clear.

Next, reflect point K in the origin.  You might want to draw a straight line thru point K and the origin.  The new point, K', will lie on this line the same distance from the origin  as is the old point K is from the origin.
5 0
3 years ago
What is the difference between 15<br>​
Dominik [7]

Answer:

its an odd number

Step-by-step explanation:

4 0
2 years ago
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