1: 72
2: 32
3: 1/2
I think this is it
The distance between point on the ground from the top of the building is 396 meter, if the building is 280 m high and The angle of depression from the top of a building to a point on the ground is 45 degrees.
Step-by-step explanation:
The given is,
The angle of depression from the top of a building to a point on the ground is 45 degrees.
Height of the building is 280 meter.
Step: 1
Given diagram is a right angled diagram,
For right angle triangle,
90° = 45° + 45°
= 90°
Trignometric ratio,
sin ∅ = ....................(1)
For the above ratio take the bottom angle, that is angle of depression from the top of a building to a point on the ground is 45 degrees.
Where, Opp side = 280 meters
Hyp side = x
∅ = 45°
Equation (1) becomes,
sin 45° =
0.70710678 =
x =
x = 395.979
Distance between point on the ground from the top of the building, x ≅ 396 meter
Trignometric ratio,
cos ∅ =
Cos 45 =
Adj = (0.70710678)(396)
Bottom length, Adj = 280 meter
Result:
The distance between point on the ground from the top of the building is 396 meter.
To find out the box number the boxes, extract the same number of balls as the number of the box, calculate the total weight.
<h3>What are the steps to find the box with the 29 kg balls?</h3>
Considering you can only weigh the balls extracted once and you need to find the box with balls that are 1-kilo lighter; here are the steps you can follow:
- Number the boxes from 1 to 19.
- Extract the same number of balls as the number given to the box. For example, from box 9 extract 9 balls.
- Weight all the balls together.
- Find out the box with the 29 kg balls. Here is an example:
The total weight using this method would be 6,300 kg which is the result of adding 30 kg (first box) + 60 kg (second box)... However, since there is a box with lighter balls the total weight will be less.
Let's imagine the weight is 6,290, this means there are 10 fewer kilos and therefore the box with the lighter balls is box 10 since this is the box number from which 10 balls were extracted.
Learn more about weight in: brainly.com/question/10069252
<span>8 minus the quotient of 15 and y
8 - 15 : y = 8 - 15/y
</span>
Answer:
Oof thats an interesting one
Step-by-step explanation:
Cant do it for ya