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kiruha [24]
3 years ago
9

A researcher studying microorganisms has discovered a strain of bacteria that doubles every 2.8 days. How many bacteria will the

researcher have after 7.3 days if they started with 650 bacteria?
Mathematics
1 answer:
Luden [163]3 years ago
4 0

Answer:

3960.4 bacteria

Step-by-step explanation:

The formula to solve the above question is given as:

P(t) = Po (2) ^t/k

P(t) = Population after time t = ?

Po = Initial population = 650 bacteria

t = Time in days = 7.3 days

k = doubling time = 2.8 days

P(t) = 650 × (2)^7.3/2.8

P(t) = 650 × 2^2.6071428571

P(t) = 650 × 6.0929582599

P(t) = 3960.4228689 bacteria.

Approximately = 3960.4 bacteria

Therefore, the number of bacteria the researcher will have after 7.3 days if they started with 650 bacteria is 3960.4 bacteria.

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Does (7, 8) make the equation y = x + 5 true?
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Please help me with this question
jek_recluse [69]
A is the correct answer





E is 90 degrees


ABE is 52 so EBD is 64
(180 - 52) \div 2 = 128 \div 2 = 64


so D is 26:
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good luck
3 0
3 years ago
f(x) = x2. What is g(x)?SIf(x)= x/g(x)(2,1)-5O A.06)-()O B. g(x) = 2x2O C. g(x)-9(x)=(*)O D. g(x)= x2
Andrew [12]
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As you can see all the possible answers have the same form:

g(x)=ax^2

By looking at the picture you'll notice that the graph of g(x) has to pass through the point (2,1). Remember that the points in the graph of g(x) have the form (x,g(x)). Since (2,1) is part of the graph of g(x) then we have the following:

\begin{gathered} (2,1)=(x,g(x)) \\ x=2 \\ g(2)=1 \end{gathered}

So let's evaluate the expression for g(x) that we wrote before at x=2. This way we'll obtain an equation for the number a:

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Then we can divide both sides by 4:

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Then we get:

g(x)=\frac{1}{4}x^2=(\frac{1}{2}x)^2Answer

Then the answer is option A.

3 0
1 year ago
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