Answer:

Step-by-step explanation:
Evaluate the Pythagorean Theorem for the triangle.
a² + b² = c²
5² + x² = 10²
25 + x² = 100
Subtract 25 from both sides.
x² = 75
Square root.
x = sqrt(75)
Expand the radical.
x = 5*sqrt(3)
The answer is
20/(4+1) = 20/5 = 4
Answer:
1.0
Step-by-step explanation:
We should assume that 4x = x+3 according to the task description.
4x = x+3
3x = 3
x = 1
It will take 73.3 seconds
X^2-10+25=35
X^2+15=35
X^2=35-15
X^2=20
X=+or- 2squareroot 5