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Grace [21]
3 years ago
7

Dennis has to take a short multiple choice quiz that 4 questions and each question has 4 answer choices. What is the probability

he gets all 4 questions incorrect?
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer:

3/4?

Step-by-step explanation:

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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
Consider the barn shown below. Assume that the barn has no floor. Part A: What is the volume of the barn?Part B: What is the sur
mafiozo [28]

Answer:

the volume is Pie X Y^-3= 6 + 7/2 which means the surface area is half of Pie/12

Step-by-step explanation:

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6 0
3 years ago
The price of a theater tickets 56.89.There are 22 seats in each row of the theater .How much would it cost to buy tickets for 2
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Answer:

Step-by-step explanation:

one row has 22 seats

2 rows have 44 seats

44x56.89=2,503.16

5 0
3 years ago
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the chess club has 50 members. they want to raise $680 for a trip to a competition. The school will give $130. how much must eac
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Assignment
Paha777 [63]
I don’t know how to solve its very hard sorry I can’t even solve it ;(
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3 years ago
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