Answer:
Volume of box is
Step-by-step explanation:
Let x be the side of square corner
Length of box after cutting corners =22-2x
Breadth of box after cutting corners =15-2x
Height =x
Volume of box = (22-2x)(15-2x)x
Volume of box =
Differentiate w.r.t x
Substitute derivative =0
at
hence maximum
hence minimum
So,Volume of box =
Hence Volume of box is
12
= 144
x*x = 144
x = 12
Hope this helps :)
Have a nice day!
the first one and third one
i got it right
11a+5
-5a-6a-3+8
=11a+5
45 3/10 mph
30 1/5 /2 = 15 1/10
15 1/10 x 3 = 45 3/10 mph