Aweather balloon is launched from the ground at a spot 250 yards from a 65 foot royal palm tree. what is the minimal angle of elevation at which the balloon must take off in order to avoid hitting
the tree? assume that the balloon flies in a straight line and the angle of elevation stays constant.

b

step-by-step explanation:

b

-1/2 +2

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %