pinktho123 pinktho123

04-09-2019
Mathematics

contestada

Solve the expression 7^P 2 (P = permutation)

42

2,640

120

5,040

Respuesta :

mathstudent55 mathstudent55

04-09-2019

Answer:

42

Step-by-step explanation:

[tex] _aP_b = \dfrac{a!}{(a - b)!} [/tex]

[tex] _7P_2 = \dfrac{7!}{(7 - 2)!} [/tex]

[tex] _7P_2 = \dfrac{7 \times 6 \times 5!}{5!} [/tex]

[tex] _7P_2 = 7 \times 6 [/tex]

[tex] _7P_2 = 42 [/tex]

Answer Link

Otras preguntas

subtract the fractions and simplify the answer 78/9-53/5

A object of mass 33 is dropped from a height of 85 meters. Calculate the average power developed by the object in falling through this distance. Take g as 9.81

Which issue was at the heart of one of the compromises made between northern and southern states during the Constitutional Convention of 1787? western land clai

Andre received $60 for his birthday and put it in his piggy bank. Each week, he puts 3 more dollars in his bank. The amount of money in dollars D in his bank is

Which expression is equal to 54? A) 4+5(3+7) B) (4+7)+11 C) 5(4+10) or D 5(12-6)

Which article of the Constitution lays out the roles and powers of the president? A. Article I B. Article II C. Article III D. Article IV

The Buddha's first dharma talk covered A. The rig Veda B. The 5 pillars C. The ten commandments D. The four noble truths and eightfold path

Which is not equivalent to 45 over 75 ? A - 9 over 15 B - 15 over 25 C - 60% D - 70%

Ideally, sustainable development should

Besides respiration, what other ways is carbon released into the atmosphere?