Answer:
C
Step-by-step explanation:
The difference formula for cosine is
cos(x - y) = cosxcosy + sinxsiny
Consider
cos75 = cos(120 - 45)°, then
cos(120 - 45)°
= cos120°cos45° + sin120°sin45° → C
If the value, let's call it x, is less than a value, it is x<__ if it's less than or equal to a value, use <u><</u>
Answer:
1) ABCD is a rhombus
2) All sides of a rhombus are equal.
4) SSS
5) CPCTC
Answer: B
Step-by-step explanation:
Grade must be greater than or equal to 88