Sabendo que uma equação de segundo grau tem raízes 3 e 1, qual das alternativas corresponde à essa equação?
a) x² - 4x – 3 = 0
b) x² + 4x + 3 = 0
c) x² - 4x + 3 = 0
d) x² + 4x – 3 = 0
e) x² - 3x + 4 = 0

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes

Which represents the number of times all outcomes less than a given outcome occur? cumulative frequency relative frequency frequency cumulative relative frequency

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?