Answer:
Step-by-step explanation:
See attached file for answer pls
The general equation is y-k=a(x-h)² where (h,k) is the vertex.
So in this case we have y+12=a(x+6)².
Plug in x=0, y=-24: -12=36a, and a=-⅓. Therefore y+12=-⅓(x+6)².
0.4, 41%, 3/7
Explain: 0.4 is 40%, which is less than 41%. 3/7 is about 43%
Cost of the current plan: $175
Number of devices: x
Cost of the new plan: $94+($4.50/device)x
Cost of the new plan is less than the current plan:
$94+($4.50/device)x<$175
Solving for x:
$94+($4.50/device)x-$94<$175-$94
($4.50/device)x<$81
(device/$4.50)($4.50/device)x<(device/$4.50)($81)
x<18 devices
Please, see the attached file.
Thanks.
First u add the 98 and 71 together to get 169
now u take 169 and subtract 102 from it
the answer to that will be ur x value