Answer:
(x,y)=(4/569),(228/569)
Step-by-step explanation:
multiply both ides by -18
eliminate one variable by adding the equations
divide both sides by -19346
sub the value of x into the equation
solve the equation
Answer: 333.2ft
Step-by-step explanation:
We can draw a triangle rectangle, where the distance between the base of the building and the car is one cathetus (300ft)
The height of the building is the other cathetus.
Now, we know that the angle of depression from the top of the building to the car is 42°
This angle is measured from a perpendicular line in from the building, so the "top angle" of the triangle rectangle will be:
90° - 42° = 48°
if we steep on this angle, the 300ft cathetus is the opposite cathetus and the height of the building is the adjacent cathetus.
Here we can use the relation:
Tan(A) = Opposite cathetus/adjacent cathetus:
Then:
Tan(48°) = H/300ft
Tan(48°)*300ft = H = 333.2ft
Answer:
Step-by-step explanation:
area of circle = πr² = 25π ft²
area of sector = 25π × 221°/360° ≅ 48.21 ft²
3/24 would be down to 1/8 so 3/24 is smaller
