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Lunna [17]
3 years ago
12

Hello! I don’t really understand this so please help ASAP!!! Thank you!

Mathematics
1 answer:
zepelin [54]3 years ago
3 0
B for Figure 30 is 90 degrees! Hope this helps! God bless you and stay safe! <3✝️❤️
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A construction company is considering submitting bids for two contracts. The company estimates that it has a 20\%20%20, percent
Nostrana [21]

Where the variance is 0.32, the mean is 0.40, and there are provided sets of probabilities, the standard deviation will be 0.566.

<h3>What is standard deviation?</h3>

The average degree of variability in your dataset is represented by the standard deviation. It reveals the average deviation of each statistic from the mean. In general, values with a high standard deviation are spread out from the mean, whereas those with a low standard deviation are grouped together close to the mean.

Here,

mean=0.4

variance=(Xn-mean)².P(x)n

=(0-0.4)²*(0.64)+(1-0.4)²*(0.32)+(2-0.4)²*0.04

variance=0.32

Standard deviation=√(variance)

=√0.32

=0.566

The standard deviation will be 0.566 where variance in 0.32 and mean is 0.40 and given sets of probability.

To know more about standard deviation,

brainly.com/question/13905583

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7 0
1 year ago
Jevon arrives home from school at 3:10.it takes him 15 minutes to eat a snack 1/2 hour to complete his homework 7 minutes to cha
zysi [14]
Arrives at home 3:10pm
snack 15min
homework 30min
change/pack 7min
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arrives to soccer practice 4:20pm
6 0
3 years ago
23 ones x 2 tens= answer
shutvik [7]
23 and 2 tens is 23 and 20 which equals 53

53
5 0
3 years ago
Danielle sells beauty supplies and earns a base salary of $450 per week plus a 9% commission on sales. During one particular wee
Anna007 [38]

Answer:

Should be 530.55 total that week

And 80.55 in commissions

7 0
3 years ago
Pls helppppp 30 minutes left!! If correct I'll give brainliest to who answers correct first.
anygoal [31]

Answer:

it should be 3.) x+2

Step-by-step explanation:

4 0
3 years ago
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