Answer:
(6,-7)
Step-by-step explanation:
subtract them:
-8x - 5y = -13
-4x - 5y = 11
you get
-4x = -24
so x = 6
plug x into the second equation:
-24 - 5y = 11
-5y = 35
y = -7
so your solution is (6,-7).
Answer:
c/a/a
Step-by-step explanation:
It is 9/20x+12 because you have to combine like terms
Cosa/1+sina + 1+sina/cosa = (cos^2a+1+2sina+sin^2a)/(cosa)((1+sina)
=( 1+1+2sina)/(cosa) (1+sina)
=2(1+sina)/ (cosa) (1+sina)
=2/cosa
=2sec a (verified)
Answer:
B
Step-by-step explanation:
