Of 100 students in a university IT department, 45 are enrolled in Discrete Mathematics, 30 in Linear Algebra, 20 in Calculus, 10 enrolled in at least two of the three courses and just 1 enrolled in student is enrolled in all the three courses. How many student take at least of one these courses?

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

hiking down a winding trail.

step-by-step explanation:

part a: 1.08

part b: 27.59

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.