Answer:
Step-by-step explanation:
(7 rows)(9 people per row) = 63 people total
Sin(8x)cos(x) - cos(8x)sin(x)
identity being used: -cos(s)sin(t) + cos(t)sin(s) = sin(s-t)
sin(8x)cos(x) - cos(8x)sin(x) --> simplified = sin(8x-x)
sin(8x-x) is simplified to --> sin (7x)
sin(8x)cos(x) - cos(8x)sin(x) = sin(7x)
<span>'x' can be anything. There's no information here to say that it must be
one thing or another. You can't find 'x', because there is no
equation.
You can probably simplify the fraction by doing some factoring, but
there's
no way to tell a value for 'x'. As long as 'x' is not -4, it can be anything, and
its value determines the value of the fraction.</span>
Answer:
36
Step-by-step explanation:20 minutes divided by 5 pieces equals 4 minutes per piece. 9 x 4 equals 36
