Answer:
Step-by-step explanation:
You have a right triangle here. The way to solve for a missing side in a right triangle is to use Pythagorean's Theorem. You can't use right triangle trig because you don't have an angle. Pythagorean's Theorem is, in this case,
and
and
so
which simplifies down to

Answer: +12
Step-by-step explanation:
- and - makes positive
Well, -11/10 is also -1.1. So, it goes right next to -1 on a number line.
42% of 100 is 42 so 42% of is half of the first answer, therefore the answer is 21.
Answer:
Cuboid's volume is l · w · h
for number one, (9 1/2)·6·(4 2/3), you get 266
there is also triangular prism, which is V = 1/2 b·h·l
which is (1/2 6.9)·8·18 which is 496.8
the surface area is just the area of all the shapes added together, i didn't see any lateral surface area on there, so im not gonna explain unless you want me to.