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Svetach [21]
1 year ago
7

F(x) = 3x+2What is f(5)?

Mathematics
2 answers:
svetlana [45]1 year ago
7 0

Answer:

f(5)=17

Step-by-step explanation:

3(5)+2

15+2

17

Please mark brainliest hope this helps

Mamont248 [21]1 year ago
5 0
f(x)=3x+2

To find f(5) substitute in the equation the x by 5 and evaluate:

\begin{gathered} f(5)=3(5)+2 \\ f(5)=15+2 \\ f(5)=17 \end{gathered}Then, f(5) is 17
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Oksanka [162]

19539 bacteria will be present after 18 hours

<u>Solution:</u>

Initial value of bacteria N = 6000

Value after 4 hours N_o = 7800

<em><u>The standard exponential equation is given as:</u></em>

N=N_{o} E^{-k t}

where

N is amount after time t

No is the initial amount

k is the constant rate of growth

t is time

Plugging in the values in formula we get,

7800 = 6000E^{-4k}

Solving for "k" we get,

\frac{13}{10}=E^{-4k}

Taking "ln" on both sides, we get

ln\frac{13}{10} = -4k

\frac{ln\frac{13}{10}}{4} = -k

On solving for ln, we get k = -0.0656

The equation becomes, N = 6000E^{0.0656t}

Now put "t" = 18,

N = 6000E^{0.0656 \times 18}\\\\N = 6000 \times 3.256 = 19539

Hence the bacteria present after 18 hours is 19539

5 0
3 years ago
The volume of a cylinder with radius r and height his v = 7h
Serjik [45]

Answer: 128.5 gallons

Step-by-step explanation:

V= πr²h

V=π15²42

V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons

Note- It would mean the world to me if you could mark me brainliest!

4 0
3 years ago
Tennis court is 78 feet wide and 27 feet long what is the perimeter of this tennis court
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Answer:

105

Step-by-step explanation:

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4 years ago
What is the approximate volume of the cylinder? Use 3.14 for π. Cylinder with height of 22 centimeters and radius of 9 centimete
mamaluj [8]

The volume of a cylinder is found through the following formula:


V = \pi r^2 h


We already have all of our values needed for this formula, so plug them into the equation:


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V = (3.14)(9)^2(22)

9^2 = 9 \times 9 = 81

3.14 \times 81 \times 22 = \boxed{5595.48}


Rounded to the nearest ones value, the approximate volume of the cylinder will be 5595 cubic centimeters.

4 0
4 years ago
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