Mathematics, 06.12.2021 09:40 msjsnell29
Area codes are the first three digits of a 10-digit telephone number. The first digit of an area code cannot be 0 or 1.
a. How many area codes can be created if digits are allowed to be repeated?
b. How many area codes can be created if digits are not allowed to be repeated?
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 15:00
If h(x) = f[tex]h(x) = f[/tex] ° [tex]g) (x)[/tex] and [tex]h(x) = \sqrt[3]{x+3}[/tex], find [tex]g(x)[/tex] if [tex]f(x) = \sqrt[3]{x +2}[/tex] ·
Answers: 1
Mathematics, 21.06.2019 23:00
72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.
Answers: 1
Mathematics, 21.06.2019 23:00
Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect
Answers: 1
You know the right answer?
Area codes are the first three digits of a 10-digit telephone number. The first digit of an area cod...
Questions
Mathematics, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Spanish, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
Social Studies, 10.02.2021 21:00
English, 10.02.2021 21:00
Mathematics, 10.02.2021 21:00
