Answer:
See explanation
Step-by-step explanation:
From the attachment, the question has been answered. However, the explanation is as follows;
Given that

This means that


See attachment (1)
Step 1: Locate point 7 on the x axis
Step 2: Locate point 4 on the y axis
Trace these two points until they intersect.
The point at which they intersect, is the required point (7,4) --See attachment (2)
The answer would be 26.25
Answer:
-10/3 is the answer
Step-by-step explanation:
Given are two complex numbers as

Recall Demoivre theorem as
(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)
Hence here we have sum of angles as
A+B = 63+117 =180

=
Since sin180=0 and cos 180=-1
The answer is 9x^3-6x^2+3x
In 4 hours they will be 400 miles apart 4 times 55 is 220 and 4 time 45 is 180 since there going in opposer directions add the miles together and it equals 400 so it takes 4 hours