Answer:
part a. (4, 4) (4, -2)
part b. y = 4 y = -2
Step-by-step explanation:
Graph the 4 and 1 from (x-4)^2 + (y-1)^2 = 9
Hint: Graph the circle on Desmos
Answer:
X = 0
Step-by-step explanation:
In the photo!!!
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
Well, the cereal cost 2.5, and the store is selling for 3.5, so is 1 buck more.
if we take 2.5 to be the 100%, what is 1 off of it in percentage?
