Answer:
Step-by-step explanation:
6
Acceleration is how fast the velosity is changing: it's the rate of change of velocity per second. So that means one needs to divide velocity per time, and the unit will then be meters per second (velocity) per second:
answer <span>D. m/s²
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The line is right in the middle of 100 and 110 degrees so the answer should be 105 degrees. This tool is called a protractor. :)
Answer:
Step-by-step explanation:
A) False ; R^2 is not a two dimensional subspace of R^3 because Vector R^2 will have 2 entries while vector R^3 has 3 entries
B) False : The number of variable in the equation is not equal to the Dimension because dim of Null A represents the number of free variables
C) False : This is because you can span R^3 with an infinite set of vectors but that doesn't make it infinite dimensional subspace
D) False : This is only possible when S has exactly n elements/vectors
E) True : Since R^3 is a three dimensional subspace it is spanned with 3 vectors whom are linearly independent
That's a Congruent Triangle question.
The first thing that we should to analize is it: What figure is EFGH? The question say for us that 
and 
, therefore, EFGH is a parallelogram because its parallel sides are congruents (equals).
Now, we should to proof that 
. The simbol "≅" means congruence, that is, means that the triangles EFH and GHF are equals.
Let's proof:
is a diagonal of the parallelogram EFGH. When we have a diagonal in a parallelogram, the opposite angles are congruents (look at the picture: the blue angles are congruent and the red angles are congruents too). Therefore, 
and 
.
Both triangle has a comum side: the diagonal . The diagonal is between two angles that we know that are congruents, Therefore, by the case ASA (Angle, Side, Angle), we proof that .
