1. 6= a/4 + 2 5. -4 = r/20 - 5. 6. -1 = 5+x/6 7. v+9/3 = 8 8. 2(n+5) = -2 9. -9x + 1 = -80. 10. -6=n/2 - 10 11. -2=2 + v/4. 12. 144 = -12 (x+5) what are the answers for these questions?? ​

Somone me i want to know what 18 hours out of 24 hours in a fraction

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?