A rhombus have four sides and all sides are equal with opposite sides are parallel.
So , since it have four sides, so it could not be a pentagon. Since opposite sides are parallel and equal, so it must be a parallelogram. And since all sides are equal, so it must be a square and it could not be a rectangle.
Therefore correct options are A,C,D,E .
Answer:
(-2,-1)
Step-by-step explanation:
Reflection across the x-axis is: 
We need to multiply the y-value of the pre-image by negative one to get reflected across the x-axis.
1 * -1 = -1
So:
D' should be (-2,-1).
Like any other polynomial, you judge the number of solutions by the highest degree of the polynomial. This is a second degree polynomial so it has 2 solutions. They are x = +[sqrt(cos x)] and x = - [sqrt(cos x)]. If you graph those on a calculator the positive portion of the graph is above the x axis and the negative portion is below the x axis. It's really cool looking. You should graph it to see.
Answer:
4.4
Step-by-step explanation:
Hope it helps.
There we go.
Just count the number of squares:
(9+5)*2=14*2=28
