) A subspace V of R 3 such that dim V ⊥ = 1. (2) A subspace V of R 3 such that dim V ⊥ = 2. (3) A subspace V of R 4 such that dim V = 2 and dim V ⊥ = 2. 2. True or false? All vectors below are in R n for some n. If your answer is "True", explain why. If your answer is "False", give a counterexample. (1) If W is a subspace of R n , then W and W⊥ have no vectors in common.

78.59 is the mean

step-by-step explanation:

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.