Answer:
3.06417777
Step-by-step explanation:
cos(40)=x/4
X² = hyp² - cat²
x² = 625 - 156.25
x² = 468.75
x ≈ 21,6
The x intercept is -3 so the point (-3,0) is on the line. This point is on the horizontal x axis. The x intercept is always in the form (NUMBER,0) where you replace "NUMBER" with any number you want.
The y intercept is -4 so we know that (0,-4) is also on the line. This is on the vertical y axis. The y intercept is always in the form (0,NUMBER)
Use the slope formula to find the slope of the line through the points (-3,0) and (0,-4)
m = (y2-y1)/(x2-x1)
m = (-4-0)/(0-(-3))
m = (-4-0)/(0+3)
m = -4/3
The answer is choice B: -4/3
I have a feeling you mixed up x and y somehow when you got -3/4
Hope this helps! This is how you do it.
(4 x 1) + (0 x 0.1) + (8 x 0.01) + (3 x 0.001) = 4.083
