Just purchased 9" tablet..does it have to be fully charged for it to come on?

Hold the volume UP botton down when it is OFF, then while holding that button down press and hold the power on button and keep both pressed for about 10 seconds. Then release.

Go into your settings and take it out of sleep or auto shut down mode.press the helpful button

Android Tablets Power Off and Sleep Options

Since it's brand new, return it. You didn't say what type of tablet it is, but they should last for many hours on a charge.

hook it to computer and go to the kurio site and have them diagnose it or they will send you a box to send it to them to be fixed or replaced,tell them its less than 9 months old

unfortunately batteries go bad too like everything else.
have you tried a different charger?

Your tablet may need its battery calibrating. To do this run your tablet until it turns itself off, this will ensure that there is no charge left in the battery. Then leave it on charge until the battery is full. Normal battery use on modern devices like tablets and phones should be between 25-75%, with a calibration once every 3-6 months to ensure a good battery lifespan. If this solution does not work you may need to replace the battery.

have you tried pressing and holding the power button for a few second?
also try and charge it before turning it on.

Try cleaning the touch-screen with a tissue or touch-screen cleaning paper, then wash your hands and use a skin moisturizer on your fingertips. If it still doesn't work, something's wrong with the unit. The touch-screen should work down to the discharge limit of the battery.

Note: when you buy a new lithium battery or device that uses one, it is a good idea to charge it completely before using. Some types of battery charge controllers use this first cycle to calibrate battery parameters so you get optimum performance from the battery.

Nothing, the X in the right hand corner should close the tab.

Assuming the battery is fully charged.

Try Settings / Backup & Reset / Factory Reset

The owner's manual that came with it should have the answer to your question.