Answer:
You didn't post a picture of the cone.
Step-by-step explanation:
The answer is A.
When simplifying radicals, you can factor out anything that is a root. In this case we have a 4th root. We can break 144 to 16*9. By doing this, we can pull out 16 which has the 4th root 2 (2*2*2*2=16). Next, a^12 has the 4th root a^3. We can't do anything with the b^3 so it stays inside the root with the 9.
Answer:
She can spend 7.5 minutes each mile
Step-by-step explanation:
6 × 7.5 minutes = 45 minutes. So, if Melinda runs 1 mile every 7.5 minutes, after 45 minutes she would have done 6 miles.
From what i know i think it’s 6n2+85
Increasing the length by 10% means we multiply the old length x by 1.1 since
100% + 10% = 1+0.1 = 1.1
Old length = x
New length = 1.1x
Old area = x*x = x^2
New area = (1.1x)*(1.1x) = (1.1*1.1)*(x*x) = 1.21x^2
So the area increases by 21%
1.21 = 1+0.21 = 100% + 21%
