Answer:
-1
Step-by-step explanation:
4x=-4
X = - 1
That's itt
Answer:

Step-by-step explanation:
Let
represent the real numbers.
For the first part, all real numbers less than or equal to 9 in algebra is
.
For the second part, all real numbers greater than or equal to 7 in algebra is
.
To combine both inequalities, it would become
.
Hope this helped! If not, please let me know! <3
The answer for x is 21.87599754
To express the value of the arc secant of the square root of 2 you must first express its cross multiplication process that having variable x as its total then you will came up with sec(x) =sqrt(2) then remember that sec() is equals to 1/cos(x), then its is 1/cos(x) = sqrt(2) then use the special triangle principles withe side length of 1,1 and sqrt(2) and the value of that is pi/4 so x= pi/4 then arcsec(sqrt(2)) = pi/4.