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mathisaqeosmw
07.07.2019 •
Mathematics
Evaluate: 6! a. 60 b. 120 c. 360 d. 720
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Ответ:
Ответ:
D.
720
Step-by-step explanation:
We know that the value of n factorial or n! is given by :-
We are given to find the value of 6! (or 6 factorial )
Using the above formula , the value of 6! is given by :-
Therefore , the value of 6! = 720
Ответ:
x = 16
Step-by-step explanation:
0=x^2-14x+46 is to be solved for x by completing the square. The first two terms, x^2 and -14x, are the incomplete square. We must find a term to add to, and then subtract from x^2 - 14x, so that we have a perfects square on the left and a negative number on the right:
x^2 - 14x = x^2 - 14x + (half of -14)^2 - (half of -14)^2 results in transformation of the original 0=x^2-14x+46 to
x^2 - 14x + 49 - 49 + 46 = 0, which simplifies to:
(x - 7)^2 - 3 = 0. We want to solve this for x.
To do that, rewrite (x - 7)^2 - 3 = 0 as (x - 7)^2 = 3, and then square both sides. We get:
x - 7 = 9, or x = 16