aubryS1k
aubryS1k
12-09-2020
Mathematics
contestada
Evaluate 2x + xy + 2-3 for x=-9, y=-5, and
z=-3.
Respuesta :
nettie68
nettie68
12-09-2020
Hi! Keep in mind there is no z in the equation so the question might trick you!
The answer is 26
Here is the process:
1. Replace the variables with the numbers they gave you.
2(-9)+ (-9)(-5)+ 2-3
2. Next evaluate it. I got 45 because a negative multiplied by a negative makes a positive.
* PEMDAS states you addition and then subtraction but it could vary based on the equation.
In this equation you have to do addition first.
-18+ 45+2-3
27+2-3
29-3
26
I hope this helps! Have a great day :)
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