Someone helpp !! I don’t understand this at all

∠AB=9

Step-by-step explanation:

the pyagrothyes therom= +=

to find ∠AB we need to find the height of the triangle.

replace the variables:

+=

=-=

simplify:

81-36=

now we solve for ∠AB

replace the variables:

+=

simplify:

36+45=

=9

I hope this helps you!!

have a nice day!!

ñplokuhtgfedij

step-by-step explanation:

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents