Answer:
The scientist can use only the angle x and the distance y to calculate the distance between the Earth and the Sun using the cosine function.Step-by-step explanation:
The cosine of an angle is equal to the ratio of the length of the adjacent side and the length of the hypotenuse. In equation form:
cos x = BC / y
Solving for BC
BC = y cos x
BC is the distance between the Earth and the sun
Natural, Whole, and Integers. Hopefully I helped :)
This line crosses the point (4,5)so we can make an equation to find the slope:

hope this helps
Answer:

Step-by-step explanation:
To find the inverse function, solve for y:
x = f(y)
x = 2y +3
x -3 = 2y
(x -3)/2 = y
The inverse function is ...
