How many lines of symmetry does a decagon
a.0
b.5
c.10
d.20

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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.

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2