Answer:
4x + 3y = -3.
Step-by-step explanation:
Using the point-slope form of a straight line:
y - y1 = m(x - x1)
y - 3 = -4/3(x - (-3))
y - 3 = -4/3x - 4
4/3x + y = -4 + 3 = -1
Multiply through by 3:-
4x+3y+3=0
Equation of a line containing a point (x1,y1),
and a slope m is given by,
(y-y1)=m(x-x1)
Here, x1= -3 , y1= 3 , m= -4/3
Putting the values,
(y-3)=-4/3(x+3)
or,3(y-3)=-4(x+3)
or,3y-9=-4x-12
or,4x+3y+3=0 , is the required equation.
Use the Pythagorean theorem:
70^2 = 42^2 + width^2
4900 = 1764 + width ^2
Subtract 1764 from both sides
3136 = width^2
Take the square root of both sides
Width = 56 inches
B
