Answer:
the third one
Step-by-step explanation:
Circumference of circle = pi*diameter = 13pi cm
Area is pi*d^2/4 = pi*13^2/4 = 42.25pi cm^2.
U² - 16 u + 64 = ( u - 8 )²
because: A² - 2 A B + B² = ( A - B )²
Answer: 64
<span>3a(8a – 6b)
= 24a^2 - 18ab
answer is </span><span>24a2 – 18ab (the last one)</span>
You cant solve but u can simplify which would be 2b=14
