Answer: -9x + y
To do this problem, we must combine like terms. This means combining any terms that have the same variable at the end.
(-2x - 7x) + (5y - 4y) = -9x + y
Answer:
41°
Step-by-step explanation:
xwy= 180°-m∆vwx
xwy=180°-139°=41°
-7√5
rewrite 20 as 2^2·5
factor 4 out of 20. negative ∛4(5)-√5
rewrite 4 and 2^2 negative ∛2^2·5-√5
pull terms out from under the radical
-3(2√5)√5
multiply 2 by -3
-6√5-√5
subtract √5 from -6√5
-7√5
the answer is -7√5
