Answer:
a) 2-6i
b)-32
Step-by-step explanation:
To get the conjugate of a complex number u simply change the sign of the imaginary part
Answer:
,
Step-by-step explanation:
Since the triangles are congruent, we already know that they have the same angles and sides.
We can solve for the missing side with this equation:
<em>subtract</em> from both sides
<em>divide </em>both sides by
Due to the Angle Theorems we already know of the angles on the triangle:
and
We can solve for the missing angle with this equation:
<em>subtract </em> from both sides
<em>plz mark me brainliest.</em> :)
Answer:
y = 40, x = 9
Step-by-step explanation:
2(3y)+2(2y-20)=360
y = 40
2x=18
x = 9
Answer:
-10
Step-by-step explanation:
x + 75 + x + 125 = 180 add like terms
2x + 200 = 180 subtract 200 from both sides
2x = -20 divide both sides by 2
x = -10
Answer:
28 units
Step-by-step explanation:
Since the perimeter of both triangles is same,
the sum of all sides of first triangle = sum of all sides of second triangle
or, 6x + 3 + 2x + 4x = 5x + 5x + 3x + 2
or, 12x + 4 = 13x + 2
or, 4-2 = 13x - 12x
or, 2 = x
Now,
Putting the value of x in the perimeter of first triangle,
12x + 4= 12* 2+ 4
= 28 units