Notice that based on the diagram, all of the sides of the triangle are the same length. (The dashes on the sides of the triangle show that the sides are of congruence.) This means that the triangle is an equilateral triangle. An important thing to note about equilateral triangles is that they all have angles of 60°. All angles in equivalent triangles are 60°.
This means that we can set 
equal to 60 to solve for 
:
Our answer is x = 9.
Answer:
3x + 1/5y = 7
1/5y = 7 - 3x
y = 5 (7 - 3x)
y = 35 - 15x
Step-by-step explanation:
(2x) / 4 ......The quotient of 2 times some number and four
Answer:
B
Step-by-step explanation:
One way to tell is to put both equations into slope-intercept form. That form is usually written 
where <em>m</em> is the slope and <em>b</em> is the y-intercept.
Solve the first equation for y.
The slope of this line is -3, and its y-intercept is 5/2.
Solve the second equation for y.
The slope of this line is -3 and its y-intercept is 2.
The lines are parallel because they have the same slope and <u>different</u> y-intercepts. There is no solution to the system.
An inscribed regular hexagon divides
the circle in six equal segments, while an
inscribed square divides the circle in four
equal segments.
An inscribed regular hexagon divides
the circle into isosceles triangles, while an
inscribed square divides the circle into right-
angled triangles.
