Perimiter=sum of all sides
x+x-4+x-4=19
3x-8=19
add 8 both sides
3x=27
divide both sides by 3
x=9 inches
x=9 in
Answer:
2
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
C=0.05M+40
Cost = 5 cents per minute plus 40 dollars
-1 you change all the x values to -1 and then solve
Answer:
61
Step-by-step explanation:
Put 12 where n is, then do the arithmetic.
a(12) = -5 +6(12-1) = 61
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We assume you didn't really mean to show an equation for -a(n). If you did, then the term you want is -61.
