Answer: y = -2x + 1
Solution:
To find the the equation use first find the slope using the equation:
m= y2-y1/x2-x1
m = -1-3/1-(-1)
m = -4/2
m = -2
Using the equation below,
y = mx + b
y = y coordinate
m = slope
x = x coordinate
b = y intercept
so to write the equation of line we need to find the y-intercept (b)
substitute the slope (-2) and any of the given pair of coordinates , right now i will be using (1,-1)
y = mx + b
-1 = (-2)(1) + b
-1+2 = b
1 = b
So the line of equation,
y = mx + b
y = -2x + 1
Answer:
3060
Step-by-step explanation:
<u>Find the cross-sectional area first of the trapezium</u>
So,
which is 40 / 2 x 15 = 20 x 15 = 300
Since there are 2 trapeziums (on the front and back): 300 x 2 = 600
<u>Find the Area of the Rectangles</u>
The first rectangle on the top would be: 6x30 = 180
The slanted rectangle on the right would be: 25x30 = 750
The rectangle on the bottom would be: 30x34 = 1020
The hidden rectangle on the left would be: 17 x 30 = 510
So by combining all these calculations, you will get the total surface area which is:
600 + 180 + 750 + 1020 + 510 = 780 + 1770 + 510 = 2550 + 510 = 3060
Answer:
Step-by-step explanation:
x-40=2×30
x=60+40=100°
Answer:
Albert Einstein
Step-by-step explanation: