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diamong [38]
3 years ago
14

I cant seem to get this right, please help me!!

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Answer:

x = 19

Step-by-step explanation:

x + x + 4 + 3x - 9 = 90

5x - 5 = 90

5x = 95

x = 19

babunello [35]3 years ago
4 0
19 the answer would be 19
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Pleaseee helpp meeee
Marta_Voda [28]

Answer and Step-by-step explanation:

[] means to take the absolute version of the number. That means if the number is negative or positive, the outcome is always positive.

14.

-[3] = -3

15.

[5 + 9] = 14

16.

[17 - 8] = 9

#teamtrees #WAP (Water And Plant)

6 0
2 years ago
The time that a randomly selected individual waits for an elevator in an office building has a uniform distribution over the int
rewona [7]

Answer:

The mean of the sampling distribution of x is 0.5 and the standard deviation is 0.083.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the population, we have that:

Mean = 0.5

Standard deviaiton = 0.289

Sample of 12

By the Central Limit Theorem

Mean = 0.5

Standard deviation s = \frac{0.289}{\sqrt{12}} = 0.083

The mean of the sampling distribution of x is 0.5 and the standard deviation is 0.083.

4 0
3 years ago
Teddy was having trouble fitting into his clothes due to weight gain. In January, he weighed 180 lbs 6 oz. He gained 3 lbs 9 oz,
barxatty [35]
He weighs 196 lbs and 6 ounces. if you add the pounds (180 to 3, 5, 6)you get 194. then you add he ounces, and remember that there are 16 ounces in a pound and 8 ounces in a cup, (6 to 9, 12, 11) you get 2lbs and 6 ounces. then you add the 2 extra pounds to the 194 and you get, all together, 196 lbs and 6 ounces.
7 0
3 years ago
Can i plz have some help with this
Klio2033 [76]

Answer:

I think they're vertical angles

x~Shaun

4 0
3 years ago
Read 2 more answers
X°<br> 1<br> 63°<br> m<br> n<br> find the value of x
Aleonysh [2.5K]

Answer:

I believe its 63°......,.,..,.,.,.,

8 0
3 years ago
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