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Evgen [1.6K]
3 years ago
6

Plz helppp I don’t understand

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0

Answer:

5+x=-4, =9

Step-by-step explanation:

5+x=-4 Write equation

-5    -5 Subtract 5 from both sides to isolate x

 +x=-9

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Plz help!!
Alexxx [7]

Answer:

there is a 3/4 chance that they pass will be completed, 3/4=75%.

Step-by-step explanation:

Thats all I got, I hope this may help tho! :)

6 0
3 years ago
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The Guptas figured out the earth was round by observing lunar eclipses.<br> a. True<br> b. False
mario62 [17]
It is true. Guptas did figure out the earth was round by observing lunar eclipses.
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3 years ago
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Suppose 12% of students are veterans. From a sample of 263 students, how unusual would it be to have less than 22 veterans?
kkurt [141]

Answer:

Yes, both np and n(1-p) are ≥ 10

Mean = 0.12 ; Standard deviation = 0.02004

Yes. There is a less than 5% chance of this happening by random variation. 0.034839

Step-by-step explanation:

Given that :

p = 12% = 0.12 ;

Sample size, n = 263

np = 263 * 0.12 = 31.56

n(1 - p) = 263(1 - 0.12) = 263 * 0.88 = 231.44

According to the central limit theorem, distribution of sample proportion approximately follow normal distribution with mean of p = 0.12 and standard deviation sqrt(p*(1 - p)/n) = sqrt (0.12 *0.88)/n = sqrt(0.0004015) = 0.02004

Z = (x - mean) / standard deviation

x = 22 / 263 = 0.08365

Z = (0.08365 - 0.12) / 0.02004

Z = −1.813872

Z = - 1.814

P(Z < −1.814) = 0.034839 (Z probability calculator)

Yes, it is unusual

0.034 < 0.05 (Hence, There is a less than 5% chance of this happening by random variation.

7 0
3 years ago
HEWWWWLPPPP<br><br><br>OPTION :<br><br>A. 52y 8m<br>B. 57y 8m<br>C. 50y 6m<br>D. 45y 6m​
vodomira [7]
I think it c 50y and 6m
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2 years ago
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Readme [11.4K]

Answer:

D

Step-by-step explanation:

more money for everyone = higher price of goods

8 0
2 years ago
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