Answer:
38.6m
Step-by-step explanation:
Theory of solving angle of elevation problem bus to take it as a right angle triangle.
The length of the the rope is the hypotenuse and the angle formed is the hypotenuse angle.
To determine the height , we take the side as opposite the angle.
Sin (angle) = height/hypotenus
Sin40= height/60
0.6428 *60 = height
38.568 = height
Approximately 38.6m
Step-by-step explanation:
sum of all angles in a triangle is 180 degrees
x + 3x + 13 + x - 8 = 180
5x + 5 = 180
5x = 175
x = 37°
A = 3x + 13
3(37) + 13
A = 124°
Answer:
n=19
Step-by-step explanation:
4n=76
n=76÷4
n=19
Answer:
OPTION B: 162, 486, 1458
Step-by-step explanation:
The given sequence is 2, 6, 18, 54, . . .
It is a geometric sequence and the common difference is 3.
The general form of a geometric sequence is: a, ar, ar², ar³, . . .
Here a = 2 and r = 3.
term of a Geometric progression is 
.
Note that the fourth term is 54.
i.e., 
.
Similarly, 
.
Also, 
.
Hence, OPTION B is the answer.
