2) Calcule o produto: a) (+2) . (-7) =
b) 13 . 20 =
c) 13 . (-2) =
d) 6 . (-1) =
e) 8 . (+1) =

f) 7 . (-6) =
g) 5 . (-10) =
h) (-8) . 2 =
i) (-1) . 4 =
j) (-16) . 0 =

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2