Since 3 doesn’t have any term goes with it then 3 is a constant number. Hope this will help!
Answer:
Option A. 4+5i
Step-by-step explanation:
we know that
The form of (a + bi) is known as a complex number where a and b are real numbers and i is an imaginary number equivalent to the square root of negative 1
we have the number
Remember
substitute
Answer:
60°
Step-by-step explanation:
The interior angles of a triangle always add up to 180°. In this case, the triangle is an equilateral, meaning it's equal. Based off of this we can conclude that all of the angles must be equal too, so that makes all of the angles 60°.
Answer:
b=-19
Step-by-step explanation:
We know that one of the solutions is x=-4/5
That is a solution to x. So if we plug in (-4/5) into the x in the equation, then it should equal 0.
5(-4/5)^2+b(4/5)+12=0
Now, just solve for b.
5(16/25)+b(4/5)+12=0
(16/5)+(4/5)b+12=0
(76/5)+(4/5)b=0
(4/5)b=-(76/5)
b=-19
