Answer:
Two measurements on a graph meet at a axis
87
Step-by-step explanation:
Range= biggest value-smallest value
R=100-13
R=87
Recall that
d/dx sech(x) = - sech(x) tanh(x)
d/dx tan⁻¹(x) = 1/(1 + x²)
Then by the chain rule,
dy/dx = - sech(x) tanh(x) / (1 + x²)
The answer is m∠R = 48.59 °
sorry..by any chance if my answer is incorrect
