To solve this problem you must apply the proccedure shown below:
1- The ladder forms an isosceles triangle, because it has two equal sides.
2- Let's call the angle
. To calculate it , you can divide the triangle into two equal right triangles and the angle
will be divided into two equal parts too. Therefore, you can calculate the half of the angle and then multiply it by two, as following:



The answer is: 
Answer:
a
Step-by-step explanation:
because they are vertical angles they are equal to each other so we write the equation 132=5x+7
step 1 subtract each side by 7
125=5x
step 2 divide each side by 5
x=25
Hope this helps- explanation is in image
Answer:
a, c, b, a
Step-by-step explanation:
Answer:
(-2,6)
Step-by-step explanation:
the actual solution to the system of equations is (-(64/27),(56/9)).
however, we can estimate by looking at the graph. the solution is where both lines intersect, and that looks to be around (-2,6) as an approximation. hope this helps!