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Darya [45]
2 years ago
15

Is a simple random sample is valid true or never true or always or sometimes

Mathematics
1 answer:
hodyreva [135]2 years ago
3 0
Sometimes because it might not always be true
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SOMEONE PLEASEEEE HELPPPP?!?!?!?!!?
Zarrin [17]

Answer:

Step-by-step explanation:

Top/Bottom = 12

Sides = 15

Front/Back = 20

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8 0
3 years ago
At 1:30 p.m., Tom leaves in his boat from a dock and heads south. He travels at a rate of 25 miles per hour. Ten minutes later,
Nadya [2.5K]

Answer: she would catch up with Tom in 1 hour.

Step-by-step explanation:

Let t represent the time it will take for Mary to catch up with Tom.

Tom leaves his boat from a dock and travels at a rate of 25 miles per hour.

Distance = speed × time

Distance travelled by Tom in t hours is

25 × t = 25t

Ten minutes later, Mary leaves the same dock in her speedboat and heads after Tom. Converting 10 minutes to hours, it becomes 10/60 hour

Time spent by Mary is (t - 10/60) hours. If she travels at a rate of 30 miles per hour, it means that the distance that she would travel in

(t - 10/60) hours is

30(t - 10/60)

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25t = 30t - 5

30t - 25t = 5

5t = 5

t = 5/5 = 1 hour

7 0
3 years ago
Consider the line y = 9x-5.
goldenfox [79]

Answer:

4 \times  {4}^{ -  5 \times 4}

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S_A_V [24]
X<-3 would be the answer
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Find the perimeter of a regular octagon whose side is "a" units
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