Answer:
397/20
Step-by-step explanation:
i think?
if im wrong im sorry
Multiply price per pound by total pounds:
2.50 x 3.5 = 8.75
Total cost = $8.75
Answer:
6
Step-by-step explanation:
Answer:
See proof below
Step-by-step explanation:
We will use the hint. The statement of the hint holds true, as the linear span of a set of vectors T is equal to the set of linear combinations of vectors in T.
Denote the linear span of vectors with the curly brackets < >, that is, 
Let 
, then u is a linear combination of v1,v2,v3, that is, there exist scalars 
such that 
. Multiply by 3 in both sides to get 
, with 
Since , 
as real numbers are closed under multiplication. Therefore 3u is a linear combination of the vectors 
, that is, 
Answer:
∠x = 63°
Step-by-step explanation:
The exterior angle added with the measure of ∠BAC will equal 180, since they will form a straight line, so we can calculate the measure of ∠BAC:
128 + x = 180
x = 52
∠BAC = 52°
The angles in a triangle all add up to 180°, so we can set up another equation to find x:
52 + 65 + x = 180
117 + x = 180
∠x = 63°
