1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elza [17]
3 years ago
11

The number of bacteria (b) in a batch of refrigerated food is given by the function b(t) = 20t2 − 70t + 300, where t is the temp

erature of the food in degrees Fahrenheit. The function t(h) = 2h + 3 gives the temperature of the food h hours after it is removed from refrigeration. Which expression correctly represents the number of bacteria (b) in the food as a function of the number of hours (h) the food is unrefrigerated?
Mathematics
1 answer:
Mazyrski [523]3 years ago
4 0
b(t)=20t^2-70t+300 represent the number of bacteria in a batch of refrigerated food, and t(h) represent the temperature of the food h hours after it is removed from refrigeration. To find the number of bacteria as function of the number of hours the food is refrigerated, we are going to find the composite function (b ∘ t). To do it, we are going to evaluate our first functions b(t) at our second function t(h):
b(t)=20t^2-70t+300
t(h)=2h+3
b(2h+3)=20(2h+3)^2-70(2h+3)+300
b(2h+3)=20(4h^2+12h+9)-140h-210+300
b(2h+3)=80h^2+240h+180-140h+90
b(2h+3)=80h^2+100h+270

We can conclude that the expression that represent <span>the number of bacteria (b) in the food as a function of the number of hours (h) the food is unrefrigerated is </span>b(h)=80h^2+100h+270
You might be interested in
Simplify 30! / 28!<br><br> Please post the correct answer. Don’t send links
viva [34]
The answer is
3 divided by 2
Hope this helped
5 0
3 years ago
A fraction with a numerator that is greater than or equal to the denominator is an
GarryVolchara [31]
****Equal to one or greater than 1***
3 0
3 years ago
What is the measure of Y? 4·9=36=36/4
alexira [117]

Answer:

Figure or Diagram Mandatory

GOOD LUCK FOR THE FUTURE! :)

3 0
3 years ago
Costs 21.36 +1.17x=73
Ierofanga [76]

Answer:

what are we actually solving for?....

anyways I had a suggestion ion know if it's right or wrong....

<em>Isolate</em><em> </em><em>the</em><em> </em><em>variable</em><em> </em><em>by</em><em> </em><em>diving</em><em> </em><em>each</em><em> </em><em>side</em><em> </em><em>by</em><em> </em><em>factor</em><em> </em><em>that</em><em> </em><em>don't</em><em> </em><em>contain</em><em> </em><em>the</em><em> </em><em>vari</em><em>able</em><em>.</em>

<em>Therefore</em><em> </em><em>x</em><em>=</em><em>7</em><em>.</em><em>2</em>

8 0
3 years ago
19-4q+q-11 simply the experssion
Black_prince [1.1K]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>8 - 3q</em>

▹ Step-by-Step Explanation

19 - 4q + q - 11

Combine like terms in terms of q:

-4q + q = -3q

Combine like terms:

19 - 11 = 8

Final answer:

8 - 3q

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

4 0
3 years ago
Other questions:
  • What type of sampling is this: Group the students in a local college by year and then randomly select 15 students from each grou
    9·1 answer
  • Find the solution to the system of equations by using the substitution method<br> Y=4x+1<br> Y=x+1
    14·1 answer
  • Jacob is rolling a number cube and flipping a coin . What is the probability that the cube will land on 4 and the coin will land
    8·2 answers
  • For a sample of n=64​, the probability of a sample mean being less than 20.5 if u = 21 and sigma = 1.31 is ​(Round to four decim
    13·1 answer
  • Work out the surface area of the shapes in the attached file
    6·1 answer
  • Some pleaseeeeee help!!<br><br><br> f(x) = 3x + 4 + 2<br> g(x) = 4<br> Find (f +g)(x).
    9·1 answer
  • Find the slope of the line through (9,0) and (3,8)
    8·1 answer
  • Que es la radicasion ​
    12·1 answer
  • What is the name of the property illustrated below?
    5·2 answers
  • Write the following inequality in slope-intercept form. 5x-5y&gt;70
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!