5-6 Practice
Inequalities in Two Triangles
Compare the given measures.
1. AB and BK
2. ST and SR
(x-3)/A
x
A_40
لام
3. m2 CDF and mZ EDF
4. m2 R and m2T
12F
5. PROOF Write a two-column proof.
Given: G is the midpoint of DF.
m21 > m_2
Prove: ED > EF

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

Determine domain and range, largest open interval, and intervals which function is continuous.