Answer:
160
Step-by-step explanation:
13² - 3² = 13 × 13 - 3 × 3 = 169 - 9 = 160


if you do a quick calculation on what that angle is, you'll notice that it is exactly 1 radian, and an angle of 1 radian, has an arc that is the same length as its radius.
that's pretty much what one-radian stands for, an angle, whose arc is the same length as its radius.

Solve the second equation for y

Substitute the given value of y into the first equation

Solve the equation for x

Substitute the given value of x into the second equation

Solve the equation for y

The possible solution of the system is the ordered pair (x,y)

Answer:
C
Step-by-step explanation:
tanA =
=
=
=
→ C