lacwyf4 lacwyf4

03-04-2021
Mathematics

contestada

If x=7 and y=−3, evaluate the following expression:3x−y2

Respuesta :

03-04-2021

3(7)-(3)2 sub in the numbers
21-6=15
the answer is 15

Answer Link

nadiebrook nadiebrook

03-04-2021

Answer:

27

Step-by-step explanation:

3x−y2= ? if x= 7 & y= -3

Step 1 insert the numbers where they go:

3(7)-(-3)2=

Step 2 the two negatives become a positive:

3(7)+(3)2=

Step 3 multiply:

21+6=

Step 4 add:

27

Answer Link

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