A ball is dropped from the top of a building that is 1,000 feet high. Its height, in feet, as a function of the time, in seconds, after the ball was dropped, is given by the following equation, f() = 1,000 - 16x2. Which set of numbers is
appropriate as the domain for this function?

First part has to be 0<x because we cant have negative numbers then we cant have the height being negative. So we have to find the greatest number for x that doesn't yield a negative number.

1000-16x2

500-16x

Divide both sides by 16

we get the biggest number is 31.25

So that means that its 0<x<31.25

Positive rational number

Step-by-step explanation:

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4