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Alexxandr [17]
3 years ago
12

Need answer for number 13. Tysm

Mathematics
2 answers:
alekssr [168]3 years ago
5 0

Answer:

B- 3

If you are satisfied with the results plz make me genius.

Ket [755]3 years ago
3 0
The answer is B hope this helps
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An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual incomes.
lesantik [10]

Answer:

the standard error is 153.125

Step-by-step explanation:

given that

The random sample is 256

The sample mean is $35,420

And, the standard deviation is $2,450

We need to find out the standard error

We know that

= standard deviation ÷ √random sample

= 2450 ÷ √256

= 2450 ÷ 16

= 153.125

Hence, the standard error is 153.125

7 0
3 years ago
Will give brainliest answer
nexus9112 [7]

Answer:

No

Step-by-step explanation:

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side.

We see that: 4.1 + 1.3 < 8.4

=> Can't  form a triangle from 4.1 cm, 8.1 cm and 1.3 cm

5 0
3 years ago
An u guys help me with -2f+3-2f-8
vredina [299]

Answer:

-4f-5

Step-by-step explanation:

M

a

t

h

w

a

y

5 0
4 years ago
What two numbers product is 72 and sum is 17
iVinArrow [24]
That would be 8 and 9.

9*8=72
While 9+8=17

I hope this helps! (:
8 0
4 years ago
Read 2 more answers
in a hotel ,100 bulbs each of 60W are lightened for 6 hours a day and 40 fans each of 50Wvate run for 10 hours a day . calculate
alekssr [168]

Answer:

1680 kwhr

Step-by-step explanation:

See attached for explanation.  I converted watt*hr to kW*hr by dividing by 1000.

Fans Bulbs  

 40         100  

 50          60      W

  10            6       hours/day

20000 36000 W*hr/day

 30          30 days/month

600000 1080000    W*hr/month

  600      1080   kWhr/month

 

Total = 1680 kWhr/month

5 0
3 years ago
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