How many 4 character login names can be created if the first two are digits and the last two are letters and none can repeat?
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
→
→ [ add the x inside the bracket ]
→ [ remove the bracket ]
→ [ final answer ]
Answer:
Step-by-step explanation:
Which expression represents [⁵√(−21)]⁶ in rational exponent form?
Solution:
Rational numbers are numbers which can be expressed as fractions in the form a / b, where a, b are integers and b is not equal to zero.
A rational exponent is an exponent that is a fraction. For example √2 = .
When expressing a number in rational exponent form, the numerator of the fractional exponent refers to a normal power, but the denominator refers to the root.