The product of two complex numbers is SOMETIMES a complex number.
this is because you can add 2 complex numbers and get a whole number, which is not a complex number. However, you can add 2 complex numbers and sometimes get another complex number.
May I have brainliest please? :)
120+25x=45x
Step 1: Simplify both sides of the equation.
25x+120=45x
Step 2: Subtract 45x from both sides.
25x+120−45x=45x−45x
−20x+120=0
Step 3: Subtract 120 from both sides.
−20x+120−120=0−120
−20x=−120
Step 4: Divide both sides by -20.
−20x
−20
=
−120
−20
x=6
Answer:
x=6
It should be d! Hope this helps! sorry if I'm wrong!
Answer:
Step-by-step explanation:
Given
Required
The mean absolute deviation
Start by calculating the mean
The mean absolute deviation is then calculated using:
So, we have:
Remove absolute brackets
Answer:
Step-by-step explanation:
First we need to calculate the sum of interior angle of the pentagon. The sum of interior angle of any polygon is expressed as S = (n-2)180
Given n = 5
S = (5-2)180
S = 3*180
S = 540°
Hence the measure of interior angle of the pentagon is 540°. The sum of all the interior angles will give us;
<A+<B+<C+<D+<E = 540
Given m∠A = m∠D = x°, m∠B = m∠C = (4x)° and the measure of reflex angle at E is (8x)°. If the reflex angle at E is (8x)°, the interior angle at E will be (360-8x)°
Substituting the given values into the formula to get x;
x+4x+4x+x+360-8x = 540
10x-8x = 540-360
2x = 180
x = 180/2
x = 90°
To find the measure of the reflex angle at vertex E, we will substitute x = 90 into the vertex E = (8x)°.
vertex E = 8(90)
vertex E = 720°
