Three years ago, sherman was twice as old as clive. if clive’s present age is c, which expression represents sherman’s present age in terms of clive’s age?

a.
2c − 3

b.
2c + 6

c.
2(c − 3)

d.
2c + 3

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?