Answer:
what is this?
Step-by-step explanation: you need to give use a better exlanation of the problem
Answer:
Both expressions equal 5 when substituting 2 for x because both expressions are equivalent
Step-by-step explanation:
Given
- Expression 1
-- - Expression 2
Required
Find the result of both expressions when 
<em>Expression 1</em>

Substitute 



<em>Expression 2</em>

Substitute 



Answer:
30.51 meters
Step-by-step explanation:
Given that:
The distance from the point to the base of the tower = 42 m, the angle of elevation = 36°.
According to sine rule if a,b,c are the sides of a triangle and its respective opposite angles are A, B, C. Therefore:

Let the height of the tower be a and the angle opposite the height be A = angle of elevation = 36°
Also let the distance from the point to the base of the tower be b = 42 m, and the angle opposite the base of the tower be B
To find B, since the angle between the height of the tower and the base is 90°, we use:
B + 36° + 90° = 180° (sum of angles in a triangle)
B + 126 = 180
B = 180 - 126
B = 54°
Therefore using sine rule:

The height of the tower is 30.51 meters
Answer:
y=4.347
Step-by-step explanation:
To solve for y in the equation:

First, subtract 5.69 from both sides

hello :
let : a the dividend
you have : a = 5×247 + R .... R is the remainder
when divided a by 5 : R = 0 , R = 1 , R =2 , R = 3 , R = 4
R = 0 : a = 5×247 + 0 = 1235
R = 1 : a = 5×247 + 1 = 1236
R = 2 : a = 5×247 + 2 = 1237
R = 3 : a = 5×247 + 3 = 1238
R = 4 : a = 5×247 + 4 = 1239