Answer:
Step-by-step explanation:
The equation of a straight line can be represented in the slope-intercept form, y = mx + c
Where c = intercept
m = slope
The equation of the given line is
3x+y=10
y = - 3x + c
Comparing it with the slope intercept equation, slope, m = -3
If a line is parallel to another line, the slope of the line is the same with the slope of the given line. This means that the slope of the line passing through the point (-2,4) is -3
We would determine the intercept, c by substituting m = -3, x = -2 and y = 4 into y = mx + c. It becomes
4 = -3 × -2 + c
4 = 6 + c
c = 4 - 6 = - 2
The equation becomes
y = - 3x + - 2
The formula for the area of a triangle is 1/2*b*h
The best thing to do is to multiply the answers then half them.
7*12= 84
84/2= 42
Therefore, the area is 42cm2
Hope this helps :)
Answer:
22
Step-by-step explanation:
418 divided by 19 is 22.