Answer:
Step-by-step explanation:
Trignomentary - real life problem.
We can find the height of the tower without measuring it. WE can find the height of the tower when we know,
1. A point which at a distance 'x' from the foot of the tower.
2. The angle of elevation is known
Eg: A tower stands vertically on the ground. From a point on the ground which is 15 m away from the foot of the tower, the angle of elevation of the top of the tower is 60°. Find the height of the tower.
AB - tower
We know the adjacent side of 60° and we have to fing the opposite side of 60°. So, we have to use
AB = 25.98 m
Height of the tower ≈ 26 m
Answer:
The amount after 8 years is $ 16,031.579
Step-by-step explanation:
Given as :
The Principal invested = $ 16000
The rate of interest compounded daily = 9 %
The time period = 8 years
Let The amount after 8 years = $ A
<u>From Compounded method </u>
Amount = Principal invested ×
Or, Amount = 16000 ×
Or, Amount = 16000 ×
∴ Amount = $ 16,031.579
Hence The amount after 8 years is $ 16,031.579 Answer
Answer:
Step-by-step explanation:
= x - 5 ( x ≥ 3 )
( )² = ( x - 5 )²
x - 3 = x² - 10x + 25
x² - 11x + 28 = 0
(x - 4)(x - 7) = 0
= 7
= 4
Check the answer:
1). x = 7
= 7 - 2
√4 = 2
2 = 2
2). x = 4
= 4 - 5
1 = - 1 (False statement) ⇒ x = 4 is an extraneous solution.
