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omeli [17]
3 years ago
8

I will mark you brainiest if you can answer this

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0
The answer is letter C
kaheart [24]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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A video store charges a one-time fee of $15. 00 to join, and charges $1. 50 per movie you
Blizzard [7]

Answer:

y=1.50x+15

if you are adding the one time fee to the cost of x amount of movies

y=1.50x if you are just looking for the cost to x amount of movies

Step-by-step explanation:

3 0
2 years ago
A large pipe dispenses 750 gallons of water in 50 seconds .at this rate how long will it take to dispense 330 gallons
Leya [2.2K]
<h2><em>750 gallons of water flows through the pipe in = 50 seconds. </em></h2><h2><em>350 gallons of water will flow in =50/750 x 330= = </em><u><em>22 seconds.</em></u></h2>
7 0
3 years ago
18^9 ÷ 18 ^4 equivalent expression
max2010maxim [7]

Answer:

18^5

Step-by-step explanation:

18^9 ÷ 18^4

= 18 ^ (9-4)

= 18 ^ 5

8 0
3 years ago
What will most likely be the population of Earth in the year 2020?
mina [271]
The answer is b. 9 billion
7 0
4 years ago
Read 2 more answers
How to find extreme values of a function.
baherus [9]

Answer:

See below

Step-by-step explanation:

Extreme values of a function are found by taking the first derivative of the function and setting it equal to 0. To determine if it's a minimum or maximum, we set the second derivative equal to 0 and determine if its positive or negative respectively.

Let's do f(x)=3x^4+2x^3-5x^2+7 as an example

By using the power rule where \frac{d}{dx}(x^n)=nx^{n-1}, then f'(x)=12x^3+6x^2-10x

Now set f'(x)=0 and solve for x:

0=12x^3+6x^2-10x

0=2x(6x^2+3x-5)

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-3\pm\sqrt{3^2-4(6)(-5)}}{2(6)}

x=\frac{-3\pm\sqrt{9+120}}{12}

x=\frac{-3\pm\sqrt{129}}{12}

x=-\frac{3}{12}\pm\frac{\sqrt{129}}{12}

x=-\frac{1}{4}\pm\frac{\sqrt{129}}{12}

x_1=0,x_2\approx0.6965,x_3=-1.1965

By plugging our critical points into f(x), we can see that our extreme values are located at (0,7), (0.6965,5.956), and (-1.1965,2.565).

The second derivative would be f''(x)=36x^2+12x-10 and plugging in our critical points will tell us if they are minimums or maximums.

If f''(x)>0, it's a minimum, but if f''(x), it's a maximum.

Since f''(0)=-10 then (0,7) is a local maximum

Since f''(0.6965)=15.822>0, then (0.6965,5.956) is a local minimum

Since f''(-1.1965)=27.18>0, then (-1.1965,2.565) is a global minimum

Therefore, the extreme values of f(x)=3x^4+2x^3-5x^2+7 are a global minimum of (-1.1965,2.565), a local minimum of (0.6965,5.956), and a local maximum of (0,7).

Hope this example helped you understand! I've attached a graph to help you visualize the extreme values and where they're located.

7 0
3 years ago
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