Answer:
5.7
Step-by-step explanation:
pythagorean theorem
A^2 + B^2 = C^2
sub in
A^2 + 7^2 = 9^2
simplify
A^2 + 49 = 81
solve
A^2 = 32
solve further
A =
use calculator and get:
5.65685
round and get:
<u>5.7</u>
is that the ixl
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-5y + 6 = -9
y = 3
subtract 6 from both sides
-5y + 6 - 6 = -9 - 6
-5y = -15
divide both sides by -5
(-5y)/5 = (-15)/5
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