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Valentin [98]
2 years ago
10

Which number below is a perfect square? 15 19 16 20 ​

Mathematics
2 answers:
Vlad1618 [11]2 years ago
7 0

Answer:

16

Step-by-step explanation:

4 x 4=16

vlada-n [284]2 years ago
6 0

Answer:

16

Step-by-step explanation:

4x4=16

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It would be -5(6)+2=-28
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A washer and dryer cost $803 combind the washer costs $47 less then the dryer whats is the cost of the dryer
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Answer:

the dryer costs $425

Step-by-step explanation:

x = washer

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using the second equation a substitute in the first equation we get

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FYI

x = y - 47 = 425 - 47 = $378

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2 years ago
Classify the following as discrete or continuous random variables.
Elena-2011 [213]

Answer:

A discrete variable is a variable that can only take some selected given values from a given set, like x ∈ {x₁, x₂, ..., xₙ}

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1)  The weight of bags of apples, with 10 apples in each bag.

Here the weight depends on the number of apples in the bag, and we can have only whole numbers of apples in the bag, so this is clearly a discrete variable.

2) The number of times required for a modem to dial an internet provider before connecting.

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3) Out of 10 times connecting to an internet provider, the average number of attempts necessary before connecting.

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M = \frac{x_1 + x_2 + ... + x_{10}}{10}

so here we have a kinda dense set of possible values, so we can think of this as a continuous variable.

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Here the possible values are whole numbers again, so we can not have values like 3.5, so again, this is a discrete variable.

8 0
3 years ago
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