Answer:
3, -6, 0, -9, 6
Step-by-step explanation:
Select the numbers below that are part of the domain of the function. (3, 0); (-6, -5); (0,-3) ; (-9, 7) ; (6, 4
The domains are independent variables in Mathematical equations. They are the variables that determine the range of any Mathematical equations.
From the series of numbers given above, the domains are:
3, -6, 0, -9, 6
1) This equation is a polynomial to the second power, so lets use the quadratic formula.
<span>[ -B +- squareroot(B^2 - 4AC) ] / 2A -A bit hard to read without the actual format. </span>
<span>= [ -20 +- squareroot( 20^2 - (4)(-5)(60) ) ] / (2)(-5) -A corresponds to -5, B to 20, and C to 60. Plug in. </span>
<span>= [ -20 +- squareroot(400 - (-1200) ) ] / (-10) - Simplifying.... </span>
<span>= [-20 +- 40] / (-10) </span>
<span>Because there is a plus/minus we now have two equations. </span>
<span>= [-20 - 40] / (-10) and = [-20 + 40] / (-10) </span>
<span>= 6 = -2 </span>
<span>Now in case you aren't extremely familiar with the quadratic equation, by plugging in each piece and solving, we get the two x-intercepts that this parabola equation crosses and a graph. Lucky for us, this means that the two numbers we solved for is equal to the time at which this object touches the ground. </span>
<span>Common sense solves the rest. You cant have negative time so -2 is off our list. </span>
<span>****That means it will take 6 seconds for this object to hit the ground. ***** </span>
<span>2) We have f(x)=2x+12 and x is the amount of movies, and this function gives us the cost of the rental. </span>
<span>She requires 7 movies, so all we have to do is simply plug in 7 for x. </span>
<span>f(x) = 2x + 12 </span>
<span>= 2(7) + 12 </span>
<span>= 14 + 12 </span>
<span>= $26 -So the cost for 7 movies will be $26. </span>
<span>We know she already has $10 so we just subtract $26 - $10 and we get $16. </span>
<span>**** In order for her to rent 7 movies, makayla needs $16 more dollars.****</span>
Answer:
28.32552
Step-by-step explanation:
just multiply them
26,846.8585 is the awnser