Answer:
Step-by-step explanation:
4(9) + 2(9)
36 + 18
54
Answer:
y = 240000 x e^(0.078 x t)
Step-by-step explanation:
This is exponential growth, so the power at the exponential function will be positive ( negative is for exponential decay.) Since it is increasing by 7.8 percent exponentially we can write an exponential function relating y with t.
Answer:
30 +0.45(m -500) . . . . for m > 500
Step-by-step explanation:
If talk time is "m" minutes, then the number of "additional minutes" is ...
m -500
The cost of those is $0.45 each, so (in dollars), the charge for additional minutes is ...
0.45(m -500)
The charge of $30 applies regardless of the number of minutes, so is added to the minutes charge. The total cost of a bill for talking more than 500 minutes is ...
30 +0.45(m -500)
_____
The cost for talking 500 minutes or less is simply 30.
Y=-3x-2
3x-8(-3x-2)=29
3x+24x+16=29
27x=12
x=4/9
y=-4/3-2
y=-3 1/3
The closest approximation algebraically is (.5,-3.5) <span />
Answer:
False
Step-by-step explanation:
