Dozen = 12
2 dozen
2x12=24
7/8 of 24
24 / 8 = 3
3 x 7 = 21
24- 21= 3
3 roses are left over
These triangles are congruent by AAS condition hence the statement is true
Answer:
not an answer but how do you attach images because it would be more useful
Step-by-step explanation:
Answer:
x = 180
Step-by-step explanation:
First, you need to know
1. Double-angle formula:
cos(2x) = 
2. Pythagorean identity:

Back to your problem, replacing the variable by the above:

By Double-angle formula
By Pythagorean identity
Given 



, we know -1 < sinx < 1, for every x ∈ R



Answer:
Step-by-step explanation: