Answer:
150x, (x<=3)
225+75x, (x>3)
*x is the number of nights stayed.
Step-by-step explanation:
-Let the number of days stayed be x.
#If the number of days is equal to or less than 3 days, the cost is:
Hence, the cost for x>3 is given by 150x
#If the number of days is greater than 3, the the cost is calculated as:
We sum the two costs for x>3
Hence, the cost for x>3 is given by 225+75x
radians is equal to 90°.
Step-by-step explanation:
Step 1:
If an angle is represented in radians, it will be of the form radians.
If an angle is represented in degrees, it will be of the form x°.
To convert radians to degrees, we multiply the radian measure by .
For the conversion of radians to degrees,
the radians in degrees = (given value in radians)().
Step 2:
To convert ,
So radians is equal to 120°.
Answer:
881.5 meters.
Step-by-step explanation:
The horizontal plane at the level of wai-kin's eyes divide the height of the cliff into two parts. Let the upper part be represented by x and the lower part be represented by y.
The height of the cliff = x + y
Applying the appropriate trigonometry functions.
To determine the value of x;
Tan θ =
Tan =
⇒ x = 490 x Tan
= 490 x 0.7265
= 355.985
x = 356 meters
To determine the value of y;
Tan θ =
Tan =
⇒ y = 490 x Tan
= 490 x 1.0724
= 525.476
y = 525.5 meters
Therefore,
The height of the cliff = x + y
= 355.985 + 525.476
= 881.461
The height of the cliff is 881.5 meters.