Answer:
Step-by-step explanation:
x =135(being opposite angles of a parallelogram)
Answer:
(-8,4)
Step-by-step explanation:
Given: 2x-3y=-28 and x+6y=16
solve for a variable and then substitute back into other equation
x + 6y = 16
x = 16 - 6y; now use this in the other equation
2x - 3y = -28; substitute into x
2(16 - 6y) - 3y = -28; distribute 2
32 - 12y - 3y = -28; combine y's
32 - 15y = -28; isolate 15y
32 + 28 = 15y; add the numbers
60 = 15y; divide by 15
y = 4
Now use this to plug into other equation
x + 6y = 16; y=4
x + 6(4) = 16;
x + 24 = 16; subtract 24 from both sides
x = -8
2x + 8.....factor = 2(x + 4)
Answer: 
Step-by-step explanation:
The formula for the lateral area of a cone 
is:
Where:
is the radius of the circular base of the cone
As we know its diameter 
, its radius is 
is the height of the cone
This is the lateral area of the volcano with the shape of a cone
