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DanielleElmas [232]
3 years ago
13

How to solve this one​

Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

2x + y =6

x + 2y = —6

Step-by-step explanation:

I hope that's help

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two vertical cliffs are on opposite sides of a 90 foot wide river. From point A at the top of the shorter cliff, the angle of el
Sedbober [7]
Answer: The tall cliff is 118.20 feet tall and the short cliff is 70.32 feet tall.

If you draw a picture with 2 cliffs and a river in the middle, you have find 2 right triangles. In each triangle the adjacent side to our known angle is the river of 90 feet. And the unknown side is the opposite leg.

Therefore, we can set up a tangent equation.

From the top of the short cliff to the top of the tall cliff, we can right and solve the following trig equation:

tan(28) = x /90
x = 47.88

From the top of the short cliff to the bottom, we can right and solve the following trip equation.

tan(38) = x/90
x = 70.32

The 70.32 is also the height of the short cliff. And adding the two answers together will give you the height of the tall cliff.

5 0
3 years ago
Select Translation, Reflection, or Rotation to identify the single transformation that transforms ∆PQR to ∆P'Q'R'.
Sergeeva-Olga [200]

Part A

Represents 'Reflection'. This is so because the y-coordinates of P, Q and R remain the same in P' , Q' and R', and only the x-coordinate changes. Hence, it is reflection along the y-axis

Part B

Represents 'Rotation'. Here, the x-coordinates and y-coordinates of each of the points have changed, and the figure has been rotated clockwise around the point Q by 90°

Part C

Represents a combination of 'Translation' and 'Reflection'. Here either of the two has happened:

  • First, all the points have been moved downwards by a fixed distance, thus changing the y-coordinate. Then, the resulting image has been reflected along the y-axis, thus changing the x-coordinate of all the points
  • First, all the points have been moved to the right by a fixed distance, thus changing the x-coordinate. Then, the resulting image has been reflected along the x-axis, thus changing the y-coordinate of all the points

Part D

Represents 2 'Translations'. Here the image has been shifted by a fixed distance in both the downward direction and the right direction. Thus, it has resulted in change of both x and y coordinates.

8 0
3 years ago
Find the length of the unknown side round your answer to the nearest whole number 18 and 4
EastWind [94]

Answer:

17.5

Step-by-step explanation:

90% sure

8 0
2 years ago
The quadratic coefficient (the number multiplying t^2) depends only on gravity, and will be the same in all free-fall situations
KengaRu [80]

Answer:

239 who are you

Step-by-step explanation:

6 0
3 years ago
What is 6 divided by 36
sergeinik [125]
The question is asking you how many times 6 can go into 36... So 6 goes into 36, 0.16/ 0.66 times
 So Basically, 6 divided by 36 = 0.16
8 0
3 years ago
Read 2 more answers
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