Lindsay scored a 10-ring hit in 80% of her 30 attempts during an archery match. The total number of 10-ring hits represents a . A) benchmark percent
B) part
C) percent
D) whole

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

6 on both sides and twelve on the top and the bottom

step-by-step explanation:

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225