Answer:
Step-by-step explanation:
The question to be solved is the following :
Suppose that a and b are any n-vectors. Show that we can always find a scalar γ so that (a − γb) ⊥ b, and that γ is unique if 
. Recall that given two vectors a,b a⊥ b if and only if 
where 
is the dot product defined in 
. Suposse that 
. We want to find γ such that 
. Given that the dot product can be distributed and that it is linear, the following equation is obtained
Recall that 
are both real numbers, so by solving the value of γ, we get that
By construction, this γ is unique if 
, since if there was a 
such that 
, then
Volume = area of base * height = 1/2 * 6 * 8 * 12
= 288 ft^3 answer
If you angle at the bottom is 50 that makes the opposite one 50 to and when there is a small square like at the top angle it means it is a 90° angle.
Since every triangle equals 180° you subtract 140 which is the 2 angles added together and the last angle would be 40°.
