Answer:
the submarine is 92.994 feet ≈ 93 feet deep from the surface of the water
Step-by-step explanation:
We can think in a triangle where the hypotenuse is the detection distance and the angle with the horizontal surface of water is the depression angle, then the underwater distance is the vertical side of the triangle.
If we denote Ф as the angle of depression ,d as the detection distance and x as the unknown depth of the submarine, using trigonometry:
x = d* sin Ф
thus
x= d * sin Ф = 238 feet * sin 23° = 92.994 feet ≈ 93 feet
Answer is underlined
BD: 16.8+50.4= <u>67.2 mm</u>
LM: 4-2.6= <u>1.4 cm</u>
Answer:
x=33
Step-by-step explanation:
x =5y+3
Let y =6
x = 5(6)+3
x = 30+3
x =33
Answer:
a) The highest temperature was registered on the sixth day after the onset of the illness.
b) The highest temperature of the patient is 101.8.
Step-by-step explanation:
Let 
, we can find the maximum and minimum temperature of the patient by means of the First and Second Derivative Tests, whose procedure is described below:
First Derivative Test
Second Derivative Test
Which means that critical value found in the previous step is an absolute maximum and there is no absolute minimum.
a) The highest temperature was registered on the sixth day after the onset of the illness.
b) We evaluated the function at critical value found by First Derivative Test:
The highest temperature of the patient is 101.8.
