Erik buys a new combination lock for his locker at the gym. The lock had 3 dials. Each with the numbers 0-9. The probability that he sets the combination as 4-3-9 is

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle