Need the altitude of an airplane is decreasing at a rate of 42 feet per second. what is the change in altitude of the airplane over a period of 27 seconds? a. -69 feet b. 1,134 feet c. 69 feet d. -1,134 feet

You know that it decreased 42 feet a second, so all you have to do is multiply by 27 to get 1134 feet. Since it's decreasing, it would be represented as a negative number, making the answer D. Next time, take it slow and draw a unit rate, as shown below!

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3