We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0
using a graph tool-----> to resolve the second order equation
see the attached figure
the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5
the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°
the answer is
sin x=-1x=-90° or 270°
45+x=y 45 minutes to get ready plus x time spending getting dressed equals y (the total time to get ready for school)
It is in y intercept form
y = mx + b
where b is the y intercept
y = 3/4 x + 2
so b = 2
therefore the y intercept is 2
C. 30 degrees because it mirrors the angle of P.
Answer:
A) $22.5
B) $12.6
C) ...
<em>Sorry but i only know two! But i hope this helps you!</em>