Answer:
(45,60)
Step-by-step explanation:
in a parallelogram, opposite angles are equal measure
2x-10 = y + 20
angles that lie on the same line add up to 180, since alternate angles of parallel lines and a transversal are equivalent
2x + 10 + 2x - 10 = 180
solving the equation with only Xs
4x = 180
x = 180/4 = 45
plug x = 45 into x and y equation
90-10 = y+ 20
80 = y + 20
y = 80-20 = 60
Answer:
3888
Step-by-step explanation:
Answer:
N = N0 e^-x t is the general form for Half-Life decay of atoms
B would be the correct choice
Part c : consecutive interior angle
part e: alternate interior angle
part f : vertical angle
The distance between you and your friend rounded to the nearest tenth is 10.7 feet.
<h3>How to find the length of a triangle using cosine rule?</h3>
The distance between you and your friend can be found using cosine rule.
Therefore,
c² =a² + b² - 2ab cos C
Therefore,
let
x = distance between him and his friend
x² = 7² + 6² - 2 × 7 × 6 cos 110°
x² = 49 + 36 - 84 × -0.34202014332
x² = 49 + 36 + 28.7296920394
x² = 113.729692039
x = √113.729692039
x = 10.6644124076
x = 10.7 ft
learn more on triangle here: brainly.com/question/2838446