Answer:
34 units
Step-by-step explanation:
The perimeter of a triangle is given by the sum of the lengths of its three sides.
So if the perimeter is 68 units and the sides measure x, 2x and 3x, we have that:
x + 2x + 3x = 68
6x = 68
x = 68/6 units
Now with the value of x we can find the length of EO:
EO = 3x
EO = 3 * (68/6)
EO = 68/2 = 34 units
Answer:
85
Step-by-step explanation:
Answer: -169
step by step
=3-2x/1/x+5
(f/g)(8)=-13/1/13=-13/1*13/1=-169
Answer:
Step-by-step explanation:
to find the surface area we need to find the followng areas:
- area of a triangle and multiply it by 4 (because there are 4 triangles)
And once we have those areas, we add them to find the surface area.
Area of the square:
the formula to find the area of a square is:
where 
is the length of the side: 
thus the area of the square is:
Area of the triangles:
the are of 1 triangle is given by
where 
is the base of the triangle: 
(the base of the triangle is the side of the square)
and 
is the height of the triangle: 
thus, the area of 1 triangle is:
the area of the 4 triangles is (we multiply by 4):
finally we add the area of the square and the area of the 4 triangles to find the total surface area:
Answer:
a = (15-11b)/7
Step-by-step explanation:
19a + 11b = 12a + 15
Subtract 12a from each side
19a-12a + 11b = 12a-12a + 15
7a +11b = 15
Subtract 11b from each side
7a+11b-11b = 15 -11b
7a = 15-11b
Divide by 7
7a/7 = (15-11b)/7
a = (15-11b)/7
