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kolezko [41]
3 years ago
6

The number of bacteria, b, in a refrigerated food is given by the function b(t) = 15t2 − 60t + 125, where t is the temperature o

f food in degrees Fahrenheit. The function t(h) = 3h + 4 gives the temperature, t, of the food h hours after being removed from the refrigerator. Find the number of bacteria in the food in h hours.
Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0
The answer of the above is
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I don't understand this. please help me, much appreciated !!
nevsk [136]

Apparently, the calculator at the link in your lesson is fully capable of giving you the necessary numbers. My own TI-84 work-alike gives me the account balances, but the rest of the numbers need to be figured.

In 30 years, there are 12×30 = 360 months, or 4×30 = 120 quarters. See the calculator results below. Your table can be filled in using the given information to find the contribution amount. The calculator gives the final balance. The interest amount is found by subtracting the contribution amount from the final balance.

\begin{array}{cccc}\text{Opt}&\text{Contributions}&\text{Int}&\text{Final Bal}\\1&360\cdot 25=9000&6250.50&15250.50\\2&120\cdot 75=9000&8467.04&17467.04\\3&1000&5489.17&6489.17\end{array}


3 0
3 years ago
If 9a +8b+9c=-9 , what is 81c+72b+81a ?
Feliz [49]
9x9=81
8x9=72
9x9=81
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3 0
3 years ago
Read 2 more answers
A In a concert band, the probability that a member is in the brass section is
Evgen [1.6K]

Answer:

C. 0.12

Step-by-step explanation:

Let's use a sample number of 100

Out of 100 members, 50 are in the brass section

Out of those 50, 24% play the trombone. This means that 12 people total play the trombone.

12/100 is .12.. That is the final answer

6 0
2 years ago
Factor completely 64x2
DaniilM [7]

Step-by-step explanation:

not factorable....rational numbers

4 0
3 years ago
Plss answer asap i will give brainliest
Elis [28]

Part (a)

<h3>Answer:   -2</h3>

-----------

Explanation:

Draw a vertical line through -2 on the x axis. This vertical line will cross the blue parabola at some point P. From point P, draw a horizontal line to the y axis. You should arrive at y = -2. Figure 1, in the attached diagram below, shows this process.

================================================

Part (b)

<h3>Answers:    x = -3 or x = 1</h3>

-----------

Explanation:

Draw a horizontal line through y = 1 on the y axis. This is because y = f(x).

This horizontal line crosses the parabola at two places. Drop a vertical line straight down to the x axis to note the x values that make f(x) = 1 true.

You should find the solutions to be x = -3 and x = 1

See figure 2.

3 0
3 years ago
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