A password is required to be 6 characters long. The first 2 must be numerical digits, the next 3 must be upper case letters of the alphabet and the last character must be one of 4 special characters ($, %, # or !) Which is the right formula for determining how many passwords can be created if digits and letters are allowed to be repeated?

so then what are you asking?

step-by-step explanation:

50-60=10

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

3+3+3+2*2*2+29*12 = 365

step-by-step explanation: