Answer:
D
Step-by-step explanation:
You have to have exactly the same thing underneath the radical. So for example in choice A you have sqrt(2) and sqrt(3) underneath the radical. They are not the same. Choice A is not the answer.
Choice B has the same problem sqrt(5) is not the same thing as sqrt(3) and choice B is not the answer.
Choice C has sqrt(5) and sqrt(6) as your choice. They are not the same. C is not correct.
D is the answer. Both choices have sqrt(7) as the radicals. They are both 7. They are the same.
Okay. The equation for a sphere's surface area is A = 4 * pi * r^2. Let's plug 5 in for r.
![4 \pi (5^2) = 4(3.14)*25 = 100 * 3.14 = 314](https://tex.z-dn.net/?f=4%20%5Cpi%20%285%5E2%29%20%3D%204%283.14%29%2A25%20%3D%20100%20%2A%203.14%20%3D%20314)
I got 314 cm^2 is the surface area, but it always helps to double check work! Hope this helps!
(x + 5)²z
(x + 5)(x+ 5)z
(x² + 5x + 5x + 25)z
(x² + 10x + 25)z
(x²)z + (10x)z + (25)z
x²z + 10xz + 25z
He traveled 48 feet more or you could say he traveled 16 yards more
The answer is B) n+6. Simply because penny is 6 inches taller than Claire, which means you would have to add 6 inches to Claire's height to reveal penny's height. Also n represents Claire height which makes the expression easier to figure out.