Hola me ayudan con mi tarea porfavor, son operaciones combinadas a) 3 x 5 (18 : 6) + 2 x 3
b) 5 + 3 - 4 + ( 6 x 7) - (18 : 3)
c) (72 : 9) + 3 - 5 + (4 x 5)
d) 100 - 52 - (56 : 7) + 13
e) 6 - 4 x (54 : 6) + 18 - (2 x 3)
f) 7 x (48 : 8) + (27 : 3) - 5 x 2

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

teleportation

step-by-step explanation: