The first digit can only range from 1-9, resulting in 9 possible options. The next four digits can range from 0-9, resulting in 10 options for each. Since the last two digits remain the same, they do not affect the sample size. Using the fundamental counting principle, we can find the amount of telephone numbers possible in the following equation.
$9 \times 10 \times 10 \times 10 \times 10 \times 1 \times 1 \\ 90000$

4 0

3 years ago

Which expression is equivalent to 5p2+ 3p2 - 6p?

melomori [17]

Answer:

is c or d i think

5 0

3 years ago

Answer please with explanation thank you

natulia [17]

Answer:

Shape a has 1 order of rotational symmetry and 1 line of symmetry

Shape b has 2 orders of rotational symmetry and 0 line of symmetry

Rotational symmetry is how many times a shape can be rotated and look the same.

Lines of symmetry are how lines can be put through the shape to make it symmetrical or the same on both sides

6 0

3 years ago