Utilizar la recta numerica para calcular: a) 12 + 2 =
b) 4 − 7 =
c) 8 − 2 =
d) −9 + 3 =

e) −14 + 5 =
f ) −6 − 6 =
g) −11 − 2 =
h) −3 − 8 =

a) 14

b) -3

c) 6

d) -6

e) -9

f) -12

g) -13

h) -11

£56

step-by-step explanation:

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length