If segment fd = 45 units and segment de = 60 units, what is the value of a? round the solution to the nearest hundredth.
triangle def in which angle f is a right angle, angle d measures a degrees, and angle e measures b degrees
22.62
28.44
41.41
61.39

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class