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ivanzaharov [21]
3 years ago
11

Plz help me with this

Mathematics
2 answers:
Contact [7]3 years ago
8 0

The answer is (A) -18p^{5}-30p^{4}+6p^{3}

svetoff [14.1K]3 years ago
5 0

Answer:

(−6p^3)(3p^2+5p−1)

=(−6p^3)(3p^2+5p+−1)

=(−6p^3)(3p^2)+(−6p^3)(5p)+(−6p^3)(−1)

=−18p^5−30p^4+6p^3

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3 years ago
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Can someone pls help me with this question?
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3 years ago
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
Anettt [7]

Answer:

1) The size of the colony after 4 ​days is 6553 mosquitoes

2) After t = 4.9\ days

Step-by-step explanation:

To answer this question you must use the growth formula

N = N_0e ^ {kt}

Where

N_0 is the initial population of mosquitoes = 1000

t is the time in days

k is the growth rate

N is the population according to the number of days

We know that when t = 1 and N_0=1000 then N = 1600

Then we use these values to find k.

1600 = 1000e ^{k(1)}\\\\\frac{1600}{1000} = e ^ k\\\\ln(\frac{1600}{1000}) = k\\\\k = 0.47

Now that we know k we can find the size of the colony after 4 days.

N = 1000e ^ {0.47(4)}\\\\N = 6553\ mosquitoes

To know how long it should take for the population to reach 10,000 mosquitoes we must do N = 10000 and solve for t.

10000 = 1000e ^ {0.47t}\\\\10 = e ^ {0.47t}\\\\ln(10) = 0.47t\\\\t = \frac{ln(10)}{0.47}\\\\t = 4.9\ days

6 0
3 years ago
Each face of a number cube is a square with a side length of 16 millimeters. What is the total area of all of the faces of the n
kupik [55]

Answer:

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3 years ago
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tester [92]

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2: Negative

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Positive plus Negative equals negative.

Positive plus positive or negative plus negative equals positive.

Hope this helps.

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3 years ago
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