Directions: Apply the formula in finding the number of Permutation of n objects taken r at a time. Write only the letter of the correct answer. _1. What is 10P3? B. 720 с. 1,200 If P( 8,r) = 336, which of the following is the value of r? C. 4 If P(n,4) = 11,880, which of the following is the value of n? с. 12 A. 120 D. 5,040 2. A. 2 в. 3 D. 5 3. A. 8 в. 10 D. 14 4. James has downloaded 15 songs on his cellphone. How many different ways can he play 5 songs с. 12,350 In how many ways can 7 potted pots be arranged in a row? с. 2,210 A. 225 В. 5,040 D. 360,360 5. A. 330 В. 720 D. 5,040
Directions: Apply the formula in finding the number of Permutation of n objects taken r at a time. Write only the letter of the correct answer. _1. What is 10P3? B. 720 с. 1,200 If P( 8,r) = 336, which of the following is the value of r? C. 4 If P(n,4) = 11,880, which of the following is the value of n? с. 12 A. 120 D. 5,040 2. A. 2 в. 3 D. 5 3. A. 8 в. 10 D. 14 4. James has downloaded 15 songs on his cellphone. How many different ways can he play 5 songs с. 12,350 In how many ways can 7 potted pots be arranged in a row? с. 2,210 A. 225 В. 5,040 D. 360,360 5. A. 330 В. 720 D. 5,040
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 28RE
Related questions
Question
Please answer this question thank you
Transcribed Image Text:Illustrative Examples 7: Find the unknown variable.
b. Р(п, 3) %3D 990
9P, = 504
Solution:
а.
Solution:
504
Р(п, 3) %3D
990
||
9!
504
n!
990
(9-r)!
362,880
(n-3)!
504
(9-г)!
362,880
n(n-1)(n-2)(n-3)!
(n-3)!
990
(9 — г)!
504
n(n – 1)(n – 2) = 990
(9 – r)!
(9 — г)!
(9 — г)
720 =
6!:
n(n – 1)(n – 2) =
11 x 10 × 9
6 =
n =
11
6 – 9 =
-r
-3%3D
-r
3 =
r
Assessment:
Directions: Apply the formula in finding the number of Permutation of n objects taken r at a time.
Write only the letter of the correct answer.
1.
What is 10P3?
C. 1,200
D. 5,040
В. 720
If P( 8,r ) = 336, which of the following is the value of r?
В. З
If P(n,4) = 11,880, which of the following is the value of n?
В. 10
A. 120
2.
A. 2
С. 4
D. 5
3.
А. 8
%3D
С. 12
D. 14
James has downloaded 15 songs on his cellphone. How many different ways can he play 5 songs?
С. 12,350
4.
В. 5,040
In how many ways can 7 potted pots be arranged in a row?
B. 720
A. 225
D. 360,360
5.
А. 330
С. 2,210
D. 5,040
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