if the triangle is equilateral,
AB=AC
4x-3=2x+11
=>x=7
side length=4(7)-3=25
perimeter=3×side length=75
It would take 7 hours at the same speed.
366/6=61
427/61=7
ANSWER
The required angle is

EXPLANATION
Let the angle whose sine is

be

Then

We take the inverse sign of both sides to obtain,

We use our scientific calculator to evaluate and obtain,
Answer:
Step-by-step explanation:
a. d(x) = x-32
d⁻¹(x) = 1/d(x) = 1/(x-32)
b. if the size in U.S is 10
x= 10
d⁻¹(x) = 1/d(x) = 1/(x-32) = 1/(10-32) = 1/-22= -1/22
Negative reciprocals of each other