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Hatshy [7]
2 years ago
5

Evaluate 3.2 + 9x + 9 when x = 1

Mathematics
1 answer:
almond37 [142]2 years ago
3 0
3.2 +9*1+9 =212.2 is the answer
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Suppose total benefits and total costs are given by b(y) = 100y − 8y2 and c(y) = 10y2. what is the maximum level of net benefits
olga nikolaevna [1]
Whenever you face the problem that deals with maxima or minima you should keep in mind that minima/maxima of a function is always a point where it's derivative is equal to zero.
To solve your problem we first need to find an equation of net benefits. Net benefits are expressed as a difference between total benefits and total cost. We can denote this function with B(y).

B(y)=b-c
B(y)=100y-18y²

Now that we have a net benefits function we need find it's derivate with respect to y.

\frac{dB(y)}{dy} =100-36y

Now we must find at which point this function is equal to zero.

0=100-36y
36y=100
y=2.8

Now that we know at which point our function reaches maxima we just plug that number back into our equation for net benefits and we get our answer.

B(2.8)=100(2.8)-18(2.8)²=138.88≈139.

One thing that always helps is to have your function graphed. It will give you a good insight into how your function behaves and allow you to identify minima/maxima points.


3 0
3 years ago
Please help! :) (Whoever answers first I'll give Brainlest!)
Irina-Kira [14]

Answer:

87

Step-by-step explanation:

Do what's inside the paranethesis first

2+(9*3)=2+27=29

29*3=87

7 0
3 years ago
These tables represent continuous functions. In which table do the values represent an exponential function.
Dennis_Churaev [7]
If you look at all 4 of these tables. Exponential means a large increase or gradual increase so. With that in mind if you look at table 1, the y column only increases by 5. For B, the y column only increases by 1. For C, the y column increase by 4 then 8 then 16 then 32. Therefore it is exponential. For D it is consistently an increase of 8.

Hope this helps!
4 0
3 years ago
Read 2 more answers
Homework help, please
Vinvika [58]
Start the line at 3 on the y-axis (vertical). then go down two boxes and to the right three & make a mark at that point. keep going down two and over three until the end of the graph. then just connect the marks.
4 0
2 years ago
45 1/2% percent as a fraction in simplest form
topjm [15]
45.5%, or 4.55, for 455/1000.

91/200
8 0
3 years ago
Read 2 more answers
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