H=9.3
h+2.9=12.2
2.9-2.9=0
12.2-2.9=9.3
I hope that helped
Answer:
The answer is 
Step-by-step explanation:
when writing scientific notation, there must be one number to the left of the decimal point.
To achieve this in this problem, you need to move the decimal point 3 times to the right.
because you are moving the point to the right, the exponent will be negative.
*rule of thumb: moving the decimal to the left will give you a positive exponent, moving to the right will give you a negative exponent*
therefore you answer should be written as:

hope this helps :)
The slope of any line perpendicular to the given line is 3
Answer:
The answer is 7 plus ½ a number
Step-by-step explanation:
ajhai ans Pani chaiyo ki sabai ko ans pathau