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Brums [2.3K]
3 years ago
11

PLEASE HELP!! URGANT!!

Mathematics
1 answer:
slavikrds [6]3 years ago
7 0

Answer:

9

Step-by-step explanation:

equation: QRI+IRS=QRS

calculate it and you get x=9

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Question 19 Unsaved
nata0808 [166]

A response variable you are trying to measure once you've done the experiment.

What have you done? You've measured what sunglasses will do to affect eyesight. You have used a 10 week period to measure their response. You don't really care what the response is -- only if there is one.

10 people and 10 weeks don't change. Those two are not a choice for an answer. Now you come to the crunch of the question. Is it the sunglasses you are trying to measure or is it what your eyes have done because you were wearing sun glasses.

So we need an answer. If you say sun glasses, how did you measure what they did. THAT's the answer. The answer is not the sunglasses.

8 0
3 years ago
Determine the number of subsets and list down all of them.
Setler [38]

We have to use Powerset .All of the elements are subsets of the set.

  • If n(A)=n

\boxed{\sf P(A)=2^n}

#1

  • {a,b,c}
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Now

P(A)={{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c}}

#2

  • {2,4,6,8}
  • It has 2^4=16 subsets

Now

P(A)={{2},{4},{6},{8},{2,4},{2,8},{2,8},{4,8},{4,6},{6,8},{2,4,6},{2,4,8},{2,6,8},{4,6,8},{2,4,6,8}}

#3

It has 2^5=32 subsets

Now

P(A)={{1},{2},{3},{4},{5},{1,2},{1,3},{1,4},{1,5},{2,3},{2,4},{2,5},{3,4},{3,5},{4,5},{1,2,3},{1,2,4},{1,2,5}...{1,2,3,4,5}}

7 0
3 years ago
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Pls help .............​
Zolol [24]
The answer is A. k/6 + 8 - 2/k
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On a number line, show all points whose coordinates satisfy the following inequalities: |x−20|<5
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Answer:

On the number line integers from 16 to 24 is the answer.

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If the minute hand is pointing to the number 9, how many minutes before the next hour is the clock showing?
Alisiya [41]

Answer:

The 9 would be pointing at 45 and 45 + 10 = 55 + 5 equals 60 thus making the answer 15 minutes until the next hour

5 0
2 years ago
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