It's a. 3.
because
3+6x=21
6x=18
x=3.
Answer:
0.4x^3 - xy.
Step-by-step explanation:
2/7x(1.4x^2-3.5y) Distributing the2/7x over the parentheses:
= 2/7 * 1.4 x^3 - 2/7 *3.5xy
= 0.4x^3 - xy
A. >. B. > D. = sorry I don’t know c !
Answer:

Step-by-step explanation:
we are given a inverse trig
we want to figure out the value of
in that case we can consider using unit circle in unit circle the value of arctan (-√3)=120°
therefore,
the value of theta is 120°
likewise by unit circle the value of sine is
