Hello,
Answer B
if 3k+3<0 ==>|3k+3|=-3k-3
==>-3k-3>12
==>-3k>15
==>k<-5
if 3k+3>0 then |3k+3|=3k+3
3k+3>12
==>3k>9
==>k>3
Answer:
7 bucks
Step-by-step explanation:
x*.8=5.62
divide both sides by .8
x=7
It's linear
If you evaluate x when it's 0 you'll get the cut in y, that means the function will pass on (0,7)
The formula for linear functions is y=mx +b
In this case b is 7
M=7-5/0+1
M=2
Now you just write the function down, it would be
F(x) =2x + 7
$108
30% discount=30/100*(108)
.......(30*108)/100
........3240/100
=$32.4
Discount=$108-$32.4=$75.6
Answer:
the forth one 10√2-3√3
Step-by-step explanation: