7+-3i is the correct answer because you add 4+3 because they are like terms then you add 2i+-5i because they are like terms
8+7=15
300/15=20
8 x 20 =160 Boys
7 x 20 = 140 girls
140 + 160 = 300
Hope this helps!
Your answer is 7. I hope this helps you out.
Answer:
choice 3) 11,488.21 cm³
Step-by-step explanation:
r= 28/2 = 14
volume = 4/3πr3 = 4/3(3.14)(14³) = 11,488.21 cm³
Answer:
The area of the circle is 
Step-by-step explanation:
we know that
The area of the circle is equal to
In this problem we have
----> the radius is half the diameter
substitute
