Please explain how you get the answer. 1. Tan(-20°)= ?

For example: Tan(-20°)=?
Has 4 choices which are:
-tan 20°
tan 20°
tan (-160°)
-tan 160°

2.cos(-49°)=?

3.sin(-150°)=?

4.sec(-121°)=?

5.cos(-170°)=?

6.tan(-163°)=?

7.csc(-112°)?

8.sin(-295°)=?

9.cos(-15°)=?

10. Tan(-216°)=?

Anthony is making a collage for his art class my picking shapes randomly. he has five squares, two triangles, two ovals, and four circles. find p( circle is chosen first)

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.