Answer:
9
Step-by-step explanation:
9 is 3/4*12.
21
E (225-25n)
n=1
So its D.
Given:
The angles are:
Example 
1. 
2. 
3. 
4. 
5. 
To find:
The complimentary angle of the given angles.
Solution:
If two angles are complimentary, then their sum is 90 degrees.
Example: Let x be the complimentary angle of
, then



Similarly,
1. The complimentary angle of
is:

2. The complimentary angle of
is:

3. The complimentary angle of
is:

4. The complimentary angle of
is:

5. The complimentary angle of
is:

Therefore, the complimentary angles of
are
respectively.
Answer:
A.
Step-by-step explanation:
A function is a relation in which every input or value in the domain is paired with exactly one output or value in range.
Draw vertical to check if there is one output for one input.
Hope it is useful...
Answer:
Step-by-step explanation:
The equation of a proportional relationship: y = mx.
METHOD 1:
We know: If x and y are in a proportional relationshi, then the ratio y/x is constant

We have P(3, 2) and Q(x, 6). Therefore
<em>cross multiply</em>
<em>divide both sides by 2</em>


METHOD 2:
<em>(look at the picture)</em>
The graph of y = mx is a straight line passes through the origin.
Step 1.
Plot point P(3, 2) on the graph.
Step 2.
Draw the line passes through he origin and point P.
Step 3.
Draw the line y = 6 <em>(6 from the coordinates of Q(x, 6))</em>
Step 4.
The intersection of lines is the point Q. Read the coordinte x.