Answer:
Step-by-step explanation:
(
x + y
^)2 finds the area of the outer square by squaring its side length.
z² + 4(
1/2xy
) finds the area of the outer square by adding the area of the inner square and the four triangles.
If you have not already, convert the angle into a radius. xπ/180 where x is the angle in degrees.
The formula for area is A=r²Ф/2 where r is radius and Ф is angle in radians.
Solve to find the area.
Hope I helped :)
Answer:
I'm going to do 1 as an example and using what I've taught you, you have to do the rest. Hope my explanation helps.
Step-by-step explanation:
We are given the points (-2, -4) and (-1, -1)
We need to find the slope.
The equation to do so is y2 - y1 / x2 - x1
lest say:
-2 is x1
-4 is y1
-1 is x2
-1 is y2
-1 - (-4) / -1 - (-2)
3/1 = 3
slope (m) = 3
We already know the y-intercept is 2
The equation of a line is y = mx + b
For this problem we just have to substitute what we already know.
y = (slope)x + y-intercept
y = 3x + 2
*TIP*
If the y-intercept is negative, let's say: b = -5 (using slope 8)
the equation will be y = 8x - 5
Hope this helps. I wish you all the best. :)
