3 years ago

What is the solution to 2sin^(2)x+sinx+1=0

1 answer:

3 0

Well you can try rewriting it to this

answer is d 270

first start of by factoring and subtracting the 1 into the right side

sin(x) ( 2 sin (x) + 1) = -1

set each one equal to -1

sin( x) = -1 and 2 sin (x) +1 = -1

2 sin (x) = -2
sin ( x) = -1
so therefore we have our final equation

sin ( x ) = - 1 and sin (x) = -1

so then you look in your unit circle and find what coordinate equals -1 in terms of sin x

You might be interested in

A line passes through the points (15,−13) and (16,−11). Hollis writes the equation y+13=(x−15) to represent the line. Which answ

Andru [333]

The equation formula is y - y1 = m(x-x1)

Using the first point for x1, y1:

Y +13 = m(x-15)

M is the slope which is the change in y over the change in x:

M = -11–13 / 16-15 = 2/1 = 2

The equation becomes y +13 =2(x+15)

The answer is:

He incorrectly wrote the slope in his equation. He should have written y+13=2(x−15).

8 0

3 years ago

There are 40 markers in a bag. Of the 10 scented markers, 6 are permanent markers. Half of the unscented markers are erasable.

Mice21 [21]

For this case we have:
10 scented markers: Column 1, row 3.
6 are permanent markers: Column 1, row 1
Half of the unscented markers are erasable: (1/2) * 30 = 15 Column 2, row 2.
Therefore, the selected table corresponds to the attached image.
Answer:
See attached image.