Una cancha para el “futbolito” tiene la medida de 48m • 24m. Carlos quiere dibujar a escala un modelo de la cancha y elige en su cuaderno de matemáticas la longitud de 30 cuadros para el largo de la cancha. ¿Con cuántos cuadros Carlos debe dibujar el ancho en su modelo? Calcula utilizando razones. * a) 10
b) 15
c) 20
d) 25

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

john earns $14.00 for two hours of work.

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb