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alexgriva [62]
3 years ago
10

Please need help on this one

Mathematics
1 answer:
tekilochka [14]3 years ago
4 0
On which one do you need help with?
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Round to the nearest whole number: 123.45
koban [17]

Answer:

123

Step-by-step explanation:

because if its lower than 50 you round down, if its 50 or above you round up

8 0
3 years ago
Read 2 more answers
According to the empirical (69-95-99.7) rule, if a random variable z has a standard normal distribution, then approximately 95%
Dmitry_Shevchenko [17]

Using z-scores, it is found that the value of z is z = 1.96.

-----------------------------

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula, which for a measure X, in a distribution with mean \mu and standard deviation \sigma, is given by:  

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • Each z-score has an associated p-value, which is the percentile.

  • The normal distribution is symmetric, which means that the middle 95% is between the <u>2.5th percentile and the 97.5th percentile</u>.
  • The 2.5th percentile is Z with a p-value of 0.025, thus Z = -1.96.
  • The 97.5th percentile is Z with a p-value of 0.975, thus Z = 1.96.
  • Thus, the value of Z is 1.96.

A similar problem is given at brainly.com/question/16965597

7 0
2 years ago
A computer is normally $550 but is discounted to $385. What percent of the original price does Mark pay?
mash [69]

Answer:

Step-by-step explanation:

70% all you have to do is divide 355/550like that and times the answer by 100

5 0
3 years ago
Read 2 more answers
The conversion factor relating feet to meters is 1 ft=0.305 m. Keep in mind that when using conversion factors, you want to make
kogti [31]

Answer:

  1763 ft²

Step-by-step explanation:

Using the given conversion factor, ...

  (164 m²)(1 ft/(.305 m))² = 165/.093025 ft² ≈ 1763 ft²

_____

The exact conversion factor is 1/0.3048, so the area is closer to 1765 ft². For a 4-significant digit answer, you need to use a conversion factor accurate to 4 significant digits.

6 0
3 years ago
Lyle shot three times as many baskets as cliff, while kyle shot 12 more baskets than cliff. if lyle and kyle shot the same numbe
olga_2 [115]
12x3=36 its that simple m8
5 0
3 years ago
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