Solve using the quadratic formula. Write answers as an exact value and as a decimal rounded to the nearest hundredth. 4r2 + 8r + 1 = 0

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)