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docker41 [41]
3 years ago
7

[Probability / Statistics) Twenty families were surveyed. How many have boys only? ​

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
8 0

Answer:

5

Step-by-step explanation:

We start by seeing how many families we have in total, which is 20. We then must subtract the number of families with girls only, the number of families with both boys and girls, and the number of families with no children. 20 - 7 is 13, then 13 - 8 is 5, and 5 - 0 is 5.

snow_lady [41]3 years ago
5 0
5



Explain; I did this already lol
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const2013 [10]
<h3>Answer:  B) angle 4</h3>

==================================

Explanation:

We can think of lines L and M as sort of train tracks. Inside the train tracks we have the interior angles of: 3, 4, 5, 6

Angles 3 and 6 are one pair of alternate interior angles. They are on alternate sides of the transversal line N.

The other pair of alternate interior angles are 4 and 5

Alternate interior angles are only congruent when L and M are parallel.

5 0
3 years ago
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Frank says that for any whole number n, the value of 6n-1 is always prime. Is Frank correct? Explain your answer.​
Lady bird [3.3K]

Answer:

Frank is wrong

Step-by-step explanation:

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3 years ago
Explain why the function is discontinuous at the given number
Blizzard [7]
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\displaystyle\lim_{x\to5}f(x)=f(5)

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f(x)=\dfrac{x^2-5x}{x^2-25}

We can write

\dfrac{x^2-5x}{x^2-25}=\dfrac{x(x-5)}{(x+5)(x-5)}=\dfrac x{x+5}

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5 0
3 years ago
Sixty miles per hour is the same rate as<br> which of the following?
Genrish500 [490]

Answer:

C.  1 mile per minute.

Step-by-step explanation:

By proportion, 60 miles per hour = 1 mile per 1/60 of an hour.

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liraira [26]

Answer:

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Simply multiply:

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