The x-coord. of the vertex is halfway between the given zeros. Here, it'd be halfway between x=3 and x=9, which comes out to x = 6 (answer).
4/10 is 2/5 or 0.4 in decimal form.
No, you only reverse the symbol when the divisor is negative
Answer:
10 1/2 hours all together but 3 1/2 each day of half sleep
Step-by-step explanation:
