What is the surface area of this triangular pyramid? 4 ft
3 ft
3 ft
3 ft
2.6 ft
square feet

54

step-by-step explanation:

6x9

1010: 3030

is it i think

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 %