tikirawallace
07.05.2020 •
Mathematics
Match the polynomial in the left column with its descriptive feature in the
right column.
A. x3 + 3x2 - 2x + 7
B. 3a b6
C. 3x4 - 9x3 + 5x8
D. 7a3b2 + 18ab2c – 9a3
E. 2x5 – 9x3 + 8x?
F. 4x8 – 7x2 + 9
G. x2 – 7
1. 9th degree monomial
II. Constant term of -7
III. 7th degree polynomial
IV. Leading coefficient of 4
V. Four terms
VI. 5th degree polynomial
VII. Equivalent to 5x8 + 3x4 – 9x3
Solved
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Ответ:
(See explanation for further details)
Step-by-step explanation:
A. : V. Four terms.
B. : I . 9th Degree Monomial (Instead, 7th Degree Monomial)
C. : VII - Equivalent to
D. : III - 7th degree polynomial.
E. : VI - 5th degree polynomial.
F. : IV - Leading coefficient of 4.
G. : II - Constant term of -7.
Ответ:
First, if we have a set of K elements, such that are ordered as:
{x₁, x₂, ...}
The total number of permutations for the K elements can be found in the next way.
For the first element in the set, we have K options.
For the second element in the set, we have (K - 1) options (because we already choose one)
For the third element we have (K - 2) options, and so on.
The total number of permutation is equal to the product between the numbers of options for each position's element, then the number of permutations for K elements is:
permutations = K*(K - 1)*(K - 2)*....*2*1 = K!
Now suppose that we have a set of N elements, and we want to make groups of K elements.
The total number of different combinations of K elements is given by the equation:
In this case we have 15 objects (then N = 15) and we take 7 at the time (Then K = 7)
Where we need to take in account the number of combinations and also the permutations for each combination.
Then the total number of different sets is:
C(15*7)*7!
First, the total number of combinations will be:
So we have 6,436 combinations, and each one of these combinations has 7! permutations.
permutations = 7! = 7*6*5*4*3*2*1 = 5,040
if we combine these we get:
Combinations*Permutations = 6,435*5,040 = 32,432,400