This is an Algebra Nation question and I'm super stumped. I'm having a mental lapse and can't tell if the .8^2 is where the rock started or the constant speed, and if it's not the constant sped; I don't know how to find it from the wording in this problem.

An astronaut drops a rock into a crater on the moon. The distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)=.8^2 . What is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

I think it's around 12 meters per seconds? I'm also stump on this question

Step-by-step explanation:

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.