The slope-intercept form:

m - slope
b - y-intercept
We have the slope
and the point (10, 4).
Substitute the value of slope and the coordinates to the equation of line:

Answer: 
The equation of line is:

Further explanation:
The standard form of equation in point-slope form is:

Given equation is:
3x+2y=10
We have to convert it into point slope form, for which we have to isolate y on one side of equation

Comparing with standard form:
m = -3/2
As the new line is parallel to given line, their slopes will be equal
So,

To find the value of b, putting the given point (4,-5) in equation

Keywords: Point-slope form, equation of line
Learn more about point-slope form of equation at:
#LearnwithBrainly
We know that
in the right triangle
sin x=opposite side angle x/hypotenuse
opposite side angle x=66 mm
hypotenuse=79 mm
so
sin x=66/79
x=arc sin (66/79)-------> x=56.66°-------> x=56.7°
the answer is
x=56.7°
Area= length * height
21*9 = 189cm^2