25x25+20x25+20x15+15x25=1800 the answer is D.
Answer:
x<4
Step-by-step explanation:
interval notaition (-∞,4)
We know, Surface Area of a Cuboid, = 2(lb + bh + hl)
A = 2(7*2 + 2*6 + 6*7)
A = 2(14 + 12 + 42)
A = 2(68)
A = 136
Hope this helps!
Answer:
student a answered correctly
Step-by-step explanation:
student b didn't multiply the crossproducts
