Question

Posting Question

Answer 1

Anyone able to explain to me the math in-between?

Answer 2

u got the answer

Answer 3

I got to 2(A'-(1/2)(h'b)/10 = b'

Answer 4

I don't know what to do with the A', or h'

Answer 5

ohhh i get it yuo have to explain the sum right

Answer 6

I just need to see how to get from 1/2(b'h) + 1/2(h'b) to -1.6

when h = 20, b = 10, A = 100 and the area of a triangle is A = bh/2

Answer 7

is the problem the rate?

Answer 8

the rate is given for the area. . .

Answer 9

how to arrive b' ?

Answer 10

substitute the value of A, b, h, h' , A' to find b' to the given derivative for the area of the rectangle. .

Answer 11

here let me illustrate. . .