（4tan30°)(5sin60°)-6cos60°​

7

Step-by-step explanation:

Using exact values

(4tan30°)(5sin60°) - 6cos60°

= 20tan30°sin60° - 6cos60°

= 20 × × - 6 ×

= - 3

= 10 - 3

= 7

a. the are of the rectangle is 18.25

b. 18.25 times two is 36.50

rae me : d

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 %