Answer:
-5-3i
Step-by-step explanation:
3-8= -5
-5-(-)2i
-5+2i=-3i
Answer: x=40°
Step-by-step explanation:
The two triangles are congruent (I think it’s called the interior angle proof) so the bottom right angle is also 65°. All angles in a Triangle equal 180°, so 180-(75+65)=40
Answer:
<h2>Center: (3, 0)</h2><h2>Radius: 2√2</h2>
Step-by-step explanation:
The equation of a circle in standard form:

(h, k) - center
r - radius
We have the equation:

Therefore
the center: 
the radius: 
Step-by-step explanation: x<-9
<h2>
Answer: 36 cm</h2>
Step-by-step explanation: 4 times 2.4 gives you 9.6. So you do the same to the 15. 15 times 2.4 = 36.375, or just 36.