Find the value of this expression if x = -1 and y = 9. x²y -7
1 answer:
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Assuming you meant is 
The answer would be :
Hope this helps !
Photon
However, your equation seems weird :o
The answer would be :
Hope this helps !
Photon
However, your equation seems weird :o
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>
Answer:
71
Step-by-step explanation:
Start solving using simultaneous equation,From there, we have r to be 3 and t to be 7
