First one/ 4 is A
Second one/5 is C
Hoped this helped upu
Answer:
see explanation
Step-by-step explanation:
Using the Addition formula for sine
sin(x ± y) = sinxcosy ± cosxsiny
Consider the left side
sin(360 - Θ ), then
= sin360°cosΘ - cos360°sinΘ
= 0 × cosΘ - 1 × sinΘ
= 0 - sinΘ = - sinΘ → verified
When you divide things into separate pieces or parts.
Let x equal a number
3x + 5 = 26
3x = 21
x = 7
the number is 7!
Since these are both right triangles, the answer must be ∠ABC=90°. Hope this helps!