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3 years ago

Where might be a lesser sooty owl be found sleeping?

1 answer:

8 0

The Lesser Sooty Owl is a strictly nocturnal bird. Hides & sleeps during the day in dense foliage, between tangles of aerial roots, in all kinds of crevices, or beneath overhanging banks. Hunts in clearings and near roads, but also inside forest.

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Krista has a quiz today. There are 4 questions with 4 options. Each question only has one correct answer. She wants to guess and

Lyrx [107]

Answer:

The probability is 0.258

Step-by-step explanation:

In this question, we want to know the probability of Krista getting exactly 3 out of the options she chooses right.

For all the questions, there are 4 questions with 4 options each

Total number of options is 4 * 4 = 16 options

there are 3 wrong options and one correct option per question. Total number of correct option is 4 and the total number of wrong options is 12

Probability of selecting a wrong option is 12/16 = 3/4 while the probability of selecting a correct option is 1/4

Thus, we can use a Bernoulli approximation to get this probability of getting three right.

let the probability of selecting a correct option be p and that of a wrong option be a.

Probability of selecting exactly three correct ones will be;

P(r = 3) = nCr p^r q^(n-r)

where n is the total number of options and r is the number of options we are selecting to be correct.

The probability = 12C3 * (1/4)^3 * (3/4)^9

= 220 * 0.015625 * 0.075084686279 = 0.258

7 0

4 years ago

The math club is doing a fundraiser to raise money to attend a math competition. The club was told by their advisor to raise $20

Llana [10]

For the answer tot he question above, let the number of t-shirts are represented by 't'
number of sweaters are represented by 's'

cost of 1t=10 and cost of 1s=20 so
10t+20s=2000 or (factor out the 10 if you want to simplify)
10(t+2s)=10(200)
divide both sides by 2
t+2s=200

7 0

3 years ago

You are saving money for your first car. You have $2000 in your account. You can deposit $100 every week. You want at least $500

lisabon 2012 [21]

Answer:

5000 ≤ 2,000 - 100x

Step-by-step explanation:

You already have 2,000 saved up. You can deposit 100 every week.

The equation would go:

5000 ≤ 2,000 - 100x

5 0

3 years ago

Can you write a rule for finding the output (absolute guessing error) given the input (a guess)?

igor_vitrenko [27]

Answer:

The rule for the plotted line is $y = \left | x - 50 \right |$

Step-by-step explanation:

The coordinates when y = 0, x = 50

When y = 10, x = 60

Therefore, the slope = (10 - 0)/(60 - 50) = 1

The equation in slope and intercept form is y - 10 = 1 × (x - 60)

y = x -60 + 10 = x -50

y = x - 50

Also, we have

When y = 20, x = 30

y = 10, x = 40

Therefore, the slope = (10 - 20)/(40 - 30) = -1

The equation in slope and intercept form is y - 10 = -1 × (x - 40)

y = -x + 40 + 10

y = 50 - x

Therefore, when x < 50, y = 50 - x

When x > 50, y = x - 50

Which is equivalent to $y = \left | x - 50 \right |$

The rule for the plotted line is $y = \left | x - 50 \right |$

5 0

3 years ago

Explain how many small beetles its would take to equal the mass of 1 small brick.

SCORPION-xisa [38]

100 because beetles are actually 2/1 inches

3 0

3 years ago