Use the drawing provided to explain the following.Given: 
, 
, and 
are the medians of 
Prove: 
What will be an ideal response?
, 
, and 
are the medians of 
, then their point of concurrence isQ, the centroid of . It follows that 
. By the Segment-Addition
Postulate, we have 
. By substitution, 
. By subtraction,
. In turn, 
or 2. Multiplying the equation
by 
, we have 
.
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Answer the question.Is f continuous at f(0)? 
A. No B. Yes
Factor the trinomial completely.x3 + 4x2 - 32x
A. (x + 8)(x - 4) B. (x2 + 8)(x - 4) C. x(x2 + 4x - 32) D. x(x + 8)(x - 4)
Solve the problem.Given that the polar equation r = 
models the orbits of the planets, estimate the smallest possible distance between Earth, for which 
and 
and Venus, for which 
and 
A. About 2 astronomical units B. Zero astronomical units C. About 0.4 astronomical units D. About 0.2 astronomical units
Solve area problem.A rubber ice-hockey puck has a 3.4 in. diameter. What is the area of one flat surface?(Use 3.1 4 for ? .)
A. 36.2984 in.2 B. 4.5373 in.2 C. 10.676 in.2 D. 9.0746 in.2