16a+1 is the answer to your question
Answer:
B
Step-by-step explanation:
Cos is the adjacent side over the hypotenuse. The adjacent side to <E is side ED. The hypotenuse is side EF. ED/EF. They do not go right out and give you this choice, but you see that B says the same thing.
Answer:
are you looking for the substiution
Step-by-step explanation:
Answer:
x = - 5
Step-by-step explanation:
5x + 23 = - 2x - 12 ( add 2x to both sides )
7x + 23 = - 12 ( subtract 23 from both sides )
7x = - 35 ( divide both sides by 7 )
x = - 5
