2. You need to drive 440 miles to get to your best friend's wedding. How fast must you drive to get there in 8 hours?

Divide total distance by time:

440 miles / 8 hours = 55 miles per hour

55 miles per hour

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft