4. ÁREA: Un fabricante de veleros está trabajando un velero donde el cliente le pidió que el área de la vela triangular sea de 126 ft' con una altura de 21 ft. ¿De cuántos
pies se debe fabricar la base de la vela?

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom