Answer:
y = 6
Step-by-step explanation:
2(2y -12) = 0
a. Distribute the problem out
4y - 24 = 0
b. Add 24 to both sides to seperate the constants and the terms.
4y - 24 = 0
+24 +24
4y = 24
c. Divide 4 out of both sides to isolate y
y = 6
d. Plug the 6 back into the equation to see if the answer is correct.
2(2(6) -12) = 0
2(12-12) = 0
2(0) = 0
Hope this helps!
First, we must find angle c:
180 - (73 + 42) = 65 degrees
Then, we use the question fro, the law of sine, which is:
angle A/ side A = angle B/ side B = angle C/ side C
The side this is opposite to the angle, it's the angle that we use. So, opposite to angle C is 28.7 . We have the equation:
65°/28.7 = 73°/a
Cross multiply and divide, and we get a = 32.2
78 = -2(m + 3) + m
78 = -2m - 6 + m
78 = -m - 6 |add 6 to both sides
84 = -m
m = -84
The up and down rectangles have an area of 6 * 4 = 24 ft^2
There are 2 of them so area = 2*24 = 48.square feet.
There is 1 floor which has an area of 4*6 = 24 square feet
The area of one of hte triangles is 1/2 4 *3.46 = 6.92
Again, there are 2 of them so the total area for the triangles is 13.84
The total area is 48 + 24 + 13.84 = 85.84 square feet.