Use the drawing provided to explain why the following theorem is true.“The tangent segments to a circle from an external point are congruent.”Given: 
and 
are tangent to 
Prove: 
[Hint: Use auxiliary line segment 
.]
What will be an ideal response?
. Now 
and 
because the measure of an angle formed by a tangent and chord at the point of contact is one-half the measure of the intercepted arc.Then 
by substitution, so 
. Then 
because these sides lie opposite the congruent angles of 
.
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Sketch by hand the graph of the function. Give the coordinates for the vertex.-3.8y - 6.6x = 7.7x2 - 1.2
A. vertex: (0.45, -0.65)
B. vertex: (-0.6, 1.25)
C. vertex: (-1.2, -1.55)
D. vertex: (-0.43, 0.69)
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
For the given functions f and g, find the requested composite function.f(x) = 
, g(x) = 
;
Find (f ? g)(x).
A. 
B. 
C. 
D. 
A cubic centimeter (cc) is the amount of space that a volume of 1 ml occupies. Because of this, we say that 1 cc = 1 ml. A common syringe is one with a capacity of 3 cc. Use the diagram below to find the indicated measurement.
B
A. 0.12 cc B. 0.012 cc C. 12 cc D. 1.2 cc