sjcowboywife sjcowboywife

16-05-2017
Mathematics

contestada

how many 7-digit phone numbers can be formed if the first digit cannot be zero and no digit can be repeated

Respuesta :

Аноним Аноним

16-05-2017

8 * 9 * 8 * 7 * 6 * 5 * 4

Answer Link

16-05-2017

If the first digit can not be 0 or 1, then there are 8 choices for the first digit. The other 6 have no restrictions, so there are 10 choices for each of those. 8⋅1000000

Answer Link

Otras preguntas

according to the Miller-Urey Experiment, what materials existed in Earth's early atmosphere

what is one reason soldiers were shunned when they returned from vietnam a.many americans did not support the war b.the soldiers carried contagious diseases b

Lydiagrace33 Image attached A) 1 point Write an inequality for this graph . Use the shift key and the key or key to type the < or > symbol . * B) Water bo

Question 7 of 25 Which structure is used by the organism to see the outside world?

B. Solve for the unknown side by applying the Triangle Angle‐Bisector Theorem.

which two processes would most likely cause metamorphic rocks to change into sediments

What is El Niño and La Niña? Where does this phenomena originate (land or water)?

Complete the following sentence. A qualified landscape architect will usually hold a college degree, may hold an advanced degree, and will often hold a _______

______ 1. Where did the Olympics originate some 3400 years ago? a) United Kingdom b) Greece c) China d) Turkey

How much shredded newspaper did each person at the table receive?