Answer: 
Step-by-step explanation:
Equilateral triangle has equal sides, let the side be
, then the perimeter is 
Therefore:



To find the altitude , we will apply Pythagoras theorem , that is

Therefore:



take the square root of both sides

Answer:
The distance is 997.5 ft.
Step-by-step explanation:
Given:
Length of Brooklyn Bridge = 5,985 ft.
Width of Brooklyn Bridge = 85 ft.
We need to find the Distance
Distance = 
Substituting the value of length to find distance we get;
Distance = 
Hence Distance is 997.5 ft.
Answer:
3.5 / 1 = 3.5 mph hope this helps....
Step-by-step explanation:
Answer:
X=6
Step-by-step explanation:
10x-5=9x+1
x-5=1
x=6
Answer:
1 solution
Step-by-step explanation:
y = 1/2x + 4
x + 2y = -8
Solve the second equation for y.
2y = -x - 8
y = -1/2x - 4
The two equations in slope-intercept form are:
y = 1/2x + 4
y = -1/2x - 4
The system consists of two lines with different slopes, so they intercept at a single point which is the solution.
Answer: 1 solution