Answer:
x = 13
Step-by-step explanation:
Please use " ln " for the "natural logarithm," not " in. "
Then you have: 2 ln 3= ln (x-4)
We need to get rid of the " ln " operator. Rewrite 2 ln 3 as ln 3² = ln (x - 4).
Then 3² = x - 4, or 9 = x - 4, or x = 13
Answer:
To write an inequality, you need to write a number on the number line, and to graph it, you need to write another inequality and figure out what the answer is.
hope this helped.
Answer:
nth term--n+3
Step-by-step explanation:
numbers increase by add three each time
<span>6/3+(-1/3)
</span><span>= 6/3-1/3
= 5/3
= 1 2/3</span>
Answer:
x^4 - 14x^2 - 40x - 75.
Step-by-step explanation:
As complex roots exist in conjugate pairs the other zero is -1 - 2i.
So in factor form we have the polynomial function:
(x - 5)(x + 3)(x - (-1 + 2i))(x - (-1 - 2i)
= (x - 5)(x + 3)( x + 1 - 2i)(x +1 + 2i)
The first 2 factors = x^2 - 2x - 15 and
( x + 1 - 2i)(x +1 + 2i) = x^2 + x + 2ix + x + 1 + 2i - 2ix - 2i - 4 i^2
= x^2 + 2x + 1 + 4
= x^2 + 2x + 5.
So in standard form we have:
(x^2 - 2x - 15 )(x^2 + 2x + 5)
= x^4 + 2x^3 + 5x^2 - 2x^3 - 4x^2 - 10x - 15x^2 - 30x - 75
= x^4 - 14x^2 - 40x - 75.
