Answer:
I believe the answer is 3
Answer:
ok something I would do is look at a video to know how to do it and than write it down on a piece of paper and than you get your answer just try not to think a lot about it just relax and find a question drink a water or a soda to help you relax as you search your answer also I'm really sorry I do not know the answer also this really works hope this comment was helpful god bless that you will find your answer
Step-by-step explanation:
Answer:
x+24 = -20
this is the equation form
We know that this is a right triangle, so one of the sides has to be 90 (indicated by the square on the corner) The angles of all triangles must add to exactly 180. Subtract 90 and 35 from 180
If we do that, we get 55. We know that the unknown angle is 55 now. Now, it asks us for b. We can pythagoras theorem which states that (a^2 + b^2 = c^2) We already know c (c is 20) It does not tell us 2 of the sides but we do know that the answer is either B or D.
The side opposite of 90* should be the largest. The size opposite of 55 would be the second largest one. The side opposite of 35 would be the smallest one. Using pythagoras theorem again, I can try plugging in both 11.47 and 16.38 with c^2 - b^2 = a^2
11.47:
400 - 132 =268 (sq root now = 16.37) this would mean that A is larger than B. B should be larger than A. Try the other one
16.37:
400 -268 = 132 (sq root = 16.37) this would mean that B is larger than A which is what we want.
Thus, 16.37 = B and the last option would be correct (D)
Hope this helps, give an honest rating for me please
Answer:
See proof below
Step-by-step explanation:
Let 
. If w=-z, then r=0 and r is real. Suppose that w≠-z, that is, r≠0.
Remember this useful identity: if x is a complex number then 
where 
is the conjugate of x.
Now, using the properties of the conjugate (the conjugate of the sum(product) of two numbers is the sum(product) of the conjugates):
=
Thus 
. From this, 
. A complex number is real if and only if it is equal to its conjugate, therefore r is real.
