Answer:
x² +4x
Step-by-step explanation:
Area of triangle= ½ ×base ×height
Given: base= 2x, height= x +4
Area of triangle
= ½(2x)(x +4)
= x(x +4)
= x(x) +x(4) <em>(</em><em>expand)</em>
= x² +4x
6 divided by 10
the fraction bar means divide
Answer:
Complex and imaginary number
Step-by-step explanation:
First, let's write the number
in the form of 
.
Since can be written in the form of 
, where 
and 
are real numbers, it is a complex number.
Also, since 
, it is also an imaginary number.
is complex and imaginary.
Answer: 14.99
Step-by-step explanation:C=2πr
d=2r
Solving ford
d=C
π=47.1
π≈14.9924
