Which expressions are equivalent to StartFraction 1 Over 81 EndFraction? Check all that apply. 8-1
9-2
StartFraction 9 Superscript 8 Over 9 Superscript 4 EndFraction
StartFraction 9 Superscript 8 Over 9 Superscript 10 EndFraction
9-6 · 93
95 · 9-7

I need help! Sorry if this has been asked before

man its nopq i just guessed and got it right so uhh

g00d lucc

step-by-step explanation:

what do you need me to answer?

step-by-step explanation:

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²