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°
It's D.30 because 600 divided by 20 is 30 or u can multiply 30 x 20 = 600.
Answer:
9.21954445729
Step-by-step explanation:
use distance formula
There should not be a -5 outside of the parenthesis in the second line
Answer:
<h3>The answer is 5.7 %</h3>
Step-by-step explanation:
To find the rate given the principal , time and interest , we use the formula

where
p is the principal
t is the time
I is the interest
From the question
Principal = $1,250
Time = 4 years
Interest = $285
We have

We have the final answer as
<h3>5.7 %</h3>
Hope this helps you