El perímetro de un lote rectangular es igual a 142m y se sabe que el largo más 13 m es
igual al triple del ancho.
a) Determine cuánto mide el largo y cuánto el ancho.
b) Calcule el área del lote y exprese el resultado en hectáreas usando notación
científica.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?