Answer: x = ± i , x = ±√2i are solution .
Step-by-step explanation:
Given : 
, use u substitution to solve.
To find : what are the solutions of the equation .
Solution : We have given that .
Let consider 
= u .
Substitute u = in given equation .
.
On factoring
.
Taking common
u( u+2) +1 (u+2) = 0.
On grouping
(u+1) (u+2) =0
Now, u+1 = 0 ⇒ u = -1.
u+2 = 0 ⇒ u = -2.
In term of x, plugging = u.
= -1 ; = -2.
taking square root both side
x = ± i
x = ±√2i.
Therefore, x = ± i , x = ±√2i are solution .
Answer:
Y and Z because just move the shape side ways and u can find the corresponding side.
The ratio given is 3:7 where nonfiction:fiction.
To find the new ratio, divide 3 from 240.
240 / 3 = 80
Now multiply 80 by 7.
80 x 7 = 560
The new ratio is 240:560
If there are 240 nonfiction books then there are 560 fiction books.
To find the total, add these together.
240 + 560 = 800
There are 800 total books
Yes. First, multiply the radicals to give 2(sqrt3×sqrt12) as stated within the laws of indicies. Now you have 2(sqrt36). Sqrt36 equals to 6 so is a rational number, so you now multiply that be 2 to give you your answer, which is 12. Therefore, the answer is rational.
Answer:
Hi. 9/14 is a fraction already. Maybe you meant decimal?
Step-by-step explanation:
