At a certain time of day, a 5 foot tall man has a 4 foot shadow. if a tree is 20 feet tall, what is the distance between the tree and the man? a.16 ft b.8ft c.20ft d.12 ft

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !